diff --git a/includes/admin/class-wc-admin-plugin-updates.php b/includes/admin/class-wc-admin-plugin-updates.php
deleted file mode 100644
index b8cf65dbaa6..00000000000
--- a/includes/admin/class-wc-admin-plugin-updates.php
+++ /dev/null
@@ -1,459 +0,0 @@
-<?php
-/**
- * Manages WooCommerce plugin updating on the plugins screen.
- *
- * @author      Automattic
- * @category    Admin
- * @package     WooCommerce/Admin
- * @version     3.2.0
- */
-if ( ! defined( 'ABSPATH' ) ) {
-	exit;
-}
-
-/**
- * WC_Admin_Plugin_Updates Class.
- */
-class WC_Admin_Plugin_Updates {
-
-	/**
-	 * This is the header used by extensions to show requirements.
-	 * @var string
-	 */
-	const VERSION_REQUIRED_HEADER = 'WC requires at least';
-
-	/**
-	 * This is the header used by extensions to show testing.
-	 * @var string
-	 */
-	const VERSION_TESTED_HEADER = 'WC tested up to';
-
-	/**
-	 * The upgrade notice shown inline.
-	 * @var string
-	 */
-	protected $upgrade_notice = '';
-
-	/**
-	 * The version for the update to WooCommerce.
-	 * @var string
-	 */
-	protected $new_version = '';
-
-	/**
-	 * Array of plugins lacking testing with the major version.
-	 * @var array
-	 */
-	protected $major_untested_plugins = array();
-
-	/**
-	 * Array of plugins lacking testing with the minor version.
-	 * @var array
-	 */
-	protected $minor_untested_plugins = array();
-
-	/**
-	 * Constructor.
-	 */
-	public function __construct() {
-		add_filter( 'extra_plugin_headers', array( $this, 'enable_wc_plugin_headers' ) );
-
-		$screen = get_current_screen();
-		if ( ! $screen ) {
-			return;
-		}
-
-		if ( 'plugins' === $screen->id ) {
-			add_action( 'in_plugin_update_message-woocommerce/woocommerce.php', array( $this, 'in_plugin_update_message' ), 10, 2 );
-		}
-
-		if ( 'update-core' === $screen->id ) {
-			add_action( 'admin_print_footer_scripts', array( $this, 'update_screen_modal' ) );
-		}
-	}
-
-	/**
-	 * Read in WooCommerce headers when reading plugin headers.
-	 *
-	 * @param array $headers
-	 * @return array $headers
-	 */
-	public function enable_wc_plugin_headers( $headers ) {
-		$headers['WCRequires'] = self::VERSION_REQUIRED_HEADER;
-		$headers['WCTested']   = self::VERSION_TESTED_HEADER;
-		return $headers;
-	}
-
-	/**
-	 * Show plugin changes on the plugins screen. Code adapted from W3 Total Cache.
-	 *
-	 * @param array $args
-	 */
-	public function in_plugin_update_message( $args, $response ) {
-		$this->new_version            = $response->new_version;
-		$this->upgrade_notice         = $this->get_upgrade_notice( $response->new_version );
-		$this->major_untested_plugins = $this->get_untested_plugins( $response->new_version, 'major' );
-		$this->minor_untested_plugins = $this->get_untested_plugins( $response->new_version, 'minor' );
-
-		if ( ! empty( $this->major_untested_plugins ) ) {
-			$this->upgrade_notice .= $this->get_extensions_inline_warning_major();
-		}
-
-		if ( ! empty( $this->minor_untested_plugins ) ) {
-			$this->upgrade_notice .= $this->get_extensions_inline_warning_minor();
-		}
-
-		if ( ! empty( $this->major_untested_plugins ) ) {
-			$this->upgrade_notice .= $this->get_extensions_modal_warning();
-			add_action( 'admin_print_footer_scripts', array( $this, 'plugin_screen_modal_js' ) );
-		}
-
-		echo apply_filters( 'woocommerce_in_plugin_update_message', $this->upgrade_notice ? '</p>' . wp_kses_post( $this->upgrade_notice ) . '<p class="dummy">' : '' );
-	}
-
-	/**
-	 * Show a warning message on the upgrades screen if the user tries to upgrade and has untested plugins.
-	 */
-	public function update_screen_modal() {
-		$updateable_plugins = get_plugin_updates();
-		if ( empty( $updateable_plugins['woocommerce/woocommerce.php'] )
-			|| empty( $updateable_plugins['woocommerce/woocommerce.php']->update )
-			|| empty( $updateable_plugins['woocommerce/woocommerce.php']->update->new_version ) ) {
-			return;
-		}
-
-		$this->new_version = wc_clean( $updateable_plugins['woocommerce/woocommerce.php']->update->new_version );
-		$this->major_untested_plugins = $this->get_untested_plugins( $this->new_version, 'major' );
-		if ( empty( $this->major_untested_plugins ) ) {
-			return;
-		}
-
-		echo $this->get_extensions_modal_warning();
-		$this->update_screen_modal_js();
-	}
-
-	/*
-	|--------------------------------------------------------------------------
-	| Modal JS
-	|--------------------------------------------------------------------------
-	|
-	| JS snippets for handling modals.
-	*/
-
-	/**
-	 * Common JS for initializing and managing the modals.
-	 */
-	protected function generic_modal_js() {
-		?>
-		<script>
-			( function( $ ) {
-				// Initialize thickbox.
-				tb_init( '.wc-thickbox' );
-
-				var old_tb_position = false;
-
-				// Make the WC thickboxes look good when opened.
-				$( '.wc-thickbox' ).on( 'click', function( evt ) {
-					var $overlay = $( '#TB_overlay' );
-					if ( ! $overlay.length ) {
-						$( 'body' ).append( '<div id="TB_overlay"></div><div id="TB_window" class="wc_untested_extensions_modal_container"></div>' );
-					} else {
-						$( '#TB_window' ).removeClass( 'thickbox-loading' ).addClass( 'wc_untested_extensions_modal_container' );
-					}
-
-					// WP overrides the tb_position function. We need to use a different tb_position function than that one.
-					// This is based on the original tb_position.
-					if ( ! old_tb_position ) {
-						old_tb_position = tb_position;
-					}
-					tb_position = function() {
-						$( '#TB_window' ).css( { marginLeft: '-' + parseInt( ( TB_WIDTH / 2 ), 10 ) + 'px', width: TB_WIDTH + 'px' } );
-						$( '#TB_window' ).css( { marginTop: '-' + parseInt( ( TB_HEIGHT / 2 ), 10 ) + 'px' } );
-					};
-				});
-
-				// Reset tb_position to WP default when modal is closed.
-				$( 'body' ).on( 'thickbox:removed', function() {
-					if ( old_tb_position ) {
-						tb_position = old_tb_position;
-					}
-				});
-			})( jQuery );
-		</script>
-		<?php
-	}
-
-	/**
-	 * JS for the modal window on the plugins screen.
-	 */
-	public function plugin_screen_modal_js() {
-		?>
-		<script>
-			( function( $ ) {
-				var $update_box = $( '#woocommerce-update' );
-				var $update_link = $update_box.find('a.update-link').first();
-				var update_url = $update_link.attr( 'href' );
-
-				// Set up thickbox.
-				$update_link.removeClass( 'update-link' );
-				$update_link.addClass( 'wc-thickbox' );
-				$update_link.attr( 'href', '#TB_inline?height=600&width=550&inlineId=wc_untested_extensions_modal' );
-
-				// Trigger the update if the user accepts the modal's warning.
-				$( '#wc_untested_extensions_modal .accept' ).on( 'click', function( evt ) {
-					evt.preventDefault();
-					tb_remove();
-					$update_link.removeClass( 'wc-thickbox open-plugin-details-modal' );
-					$update_link.addClass( 'update-link' );
-					$update_link.attr( 'href', update_url );
-					$update_link.click();
-				});
-
-				$( '#wc_untested_extensions_modal .cancel a' ).on( 'click', function( evt ) {
-					evt.preventDefault();
-					tb_remove();
-				});
-			})( jQuery );
-		</script>
-		<?php
-		$this->generic_modal_js();
-	}
-
-	/**
-	 * JS for the modal window on the updates screen.
-	 */
-	protected function update_screen_modal_js() {
-		?>
-		<script>
-			( function( $ ) {
-				var modal_dismissed = false;
-
-				// Show the modal if the WC upgrade checkbox is checked.
-				var show_modal_if_checked = function() {
-					if ( modal_dismissed ) {
-						return;
-					}
-					var $checkbox = $( 'input[value="woocommerce/woocommerce.php"]' );
-					if ( $checkbox.prop( 'checked' ) ) {
-						$( '#wc-upgrade-warning' ).click();
-					}
-				}
-
-				$( '#plugins-select-all, input[value="woocommerce/woocommerce.php"]' ).on( 'change', function() {
-					show_modal_if_checked();
-				} );
-
-				// Add a hidden thickbox link to use for bringing up the modal.
-				$('body').append( '<a href="#TB_inline?height=600&width=550&inlineId=wc_untested_extensions_modal" class="wc-thickbox" id="wc-upgrade-warning" style="display:none"></a>' );
-
-				// Don't show the modal again once it's been accepted.
-				$( '#wc_untested_extensions_modal .accept' ).on( 'click', function( evt ) {
-					evt.preventDefault();
-					modal_dismissed = true;
-					tb_remove();
-				});
-
-				// Uncheck the WC update checkbox if the modal is canceled.
-				$( '#wc_untested_extensions_modal .cancel a' ).on( 'click', function( evt ) {
-					evt.preventDefault();
-					$( 'input[value="woocommerce/woocommerce.php"]' ).prop( 'checked', false );
-					tb_remove();
-				});
-			})( jQuery );
-		</script>
-		<?php
-		$this->generic_modal_js();
-	}
-
-	/*
-	|--------------------------------------------------------------------------
-	| Message Helpers
-	|--------------------------------------------------------------------------
-	|
-	| Methods for getting messages.
-	*/
-
-	/**
-	 * Get the inline warning notice for minor version updates.
-	 *
-	 * @return string
-	 */
-	protected function get_extensions_inline_warning_minor() {
-		$upgrade_type  = 'minor';
-		$plugins       = ! empty( $this->major_untested_plugins ) ? array_diff_key( $this->minor_untested_plugins, $this->major_untested_plugins ) : $this->minor_untested_plugins;
-		$version_parts = explode( '.', $this->new_version );
-		$new_version   = $version_parts[0] . '.' . $version_parts[1];
-
-		if ( empty( $plugins ) ) {
-			return;
-		}
-
-		/* translators: %s: version number */
-		$message = sprintf( __( 'The installed versions of the following plugin(s) are not tested with WooCommerce %s. If possible, update these plugins before updating WooCommerce:', 'woocommerce' ), $new_version );
-
-		ob_start();
-		include( 'views/html-notice-untested-extensions-inline.php' );
-		return ob_get_clean();
-	}
-
-	/**
-	 * Get the inline warning notice for major version updates.
-	 *
-	 * @return string
-	 */
-	protected function get_extensions_inline_warning_major() {
-		$upgrade_type  = 'major';
-		$plugins       = $this->major_untested_plugins;
-		$version_parts = explode( '.', $this->new_version );
-		$new_version   = $version_parts[0] . '.0';
-
-		if ( empty( $plugins ) ) {
-			return;
-		}
-
-		/* translators: %s: version number */
-		$message = sprintf( __( 'Heads up! The installed versions of the following plugin(s) are not tested with WooCommerce %s and may not be fully-compatible. Please update these extensions or confirm they are compatible first, or you may experience issues:', 'woocommerce' ), $new_version );
-
-		ob_start();
-		include( 'views/html-notice-untested-extensions-inline.php' );
-		return ob_get_clean();
-	}
-
-	/**
-	 * Get the warning notice for the modal window.
-	 *
-	 * @return string
-	 */
-	protected function get_extensions_modal_warning() {
-		$version_parts = explode( '.', $this->new_version );
-		$new_version   = $version_parts[0] . '.0';
-		$plugins       = $this->major_untested_plugins;
-
-		ob_start();
-		include( 'views/html-notice-untested-extensions-modal.php' );
-		return ob_get_clean();
-	}
-
-	/**
-	 * Get the upgrade notice from WordPress.org.
-	 *
-	 * @param  string $version
-	 * @return string
-	 */
-	protected function get_upgrade_notice( $version ) {
-		$transient_name = 'wc_upgrade_notice_' . $version;
-
-		if ( false === ( $upgrade_notice = get_transient( $transient_name ) ) ) {
-			$response = wp_safe_remote_get( 'https://plugins.svn.wordpress.org/woocommerce/trunk/readme.txt' );
-
-			if ( ! is_wp_error( $response ) && ! empty( $response['body'] ) ) {
-				$upgrade_notice = $this->parse_update_notice( $response['body'], $version );
-				set_transient( $transient_name, $upgrade_notice, DAY_IN_SECONDS );
-			}
-		}
-		return $upgrade_notice;
-	}
-
-	/**
-	 * Parse update notice from readme file.
-	 *
-	 * @param  string $content
-	 * @param  string $new_version
-	 * @return string
-	 */
-	private function parse_update_notice( $content, $new_version ) {
-		$version_parts     = explode( '.', $new_version );
-		$check_for_notices = array(
-			$version_parts[0] . '.0', // Major
-			$version_parts[0] . '.0.0', // Major
-			$version_parts[0] . '.' . $version_parts[1], // Minor
-			$version_parts[0] . '.' . $version_parts[1] . '.' . $version_parts[2], // Patch
-		);
-
-		foreach ( $check_for_notices as $check_version ) {
-			if ( version_compare( WC_VERSION, $check_version, '>' ) ) {
-				continue;
-			}
-			$matches        = null;
-			$regexp         = '~==\s*Upgrade Notice\s*==\s*=\s*(.*)\s*=(.*)(=\s*' . preg_quote( $new_version ) . '\s*=|$)~Uis';
-			$upgrade_notice = '';
-
-			if ( preg_match( $regexp, $content, $matches ) ) {
-				$notices = (array) preg_split( '~[\r\n]+~', trim( $matches[2] ) );
-
-				if ( version_compare( trim( $matches[1] ), $check_version, '=' ) ) {
-					$upgrade_notice .= '<p class="wc_plugin_upgrade_notice">';
-
-					foreach ( $notices as $index => $line ) {
-						$upgrade_notice .= preg_replace( '~\[([^\]]*)\]\(([^\)]*)\)~', '<a href="${2}">${1}</a>', $line );
-					}
-
-					$upgrade_notice .= '</p>';
-				}
-				break;
-			}
-		}
-		return wp_kses_post( $upgrade_notice );
-	}
-
-	/*
-	|--------------------------------------------------------------------------
-	| Data Helpers
-	|--------------------------------------------------------------------------
-	|
-	| Methods for getting & manipulating data.
-	*/
-
-	/**
-	 * Get active plugins that have a tested version lower than the input version.
-	 *
-	 * @param string $version
-	 * @param string $release 'major' or 'minor'.
-	 * @return array of plugin info arrays
-	 */
-	protected function get_untested_plugins( $version, $release ) {
-		$extensions    = $this->get_plugins_with_header( self::VERSION_TESTED_HEADER );
-		$untested      = array();
-		$version_parts = explode( '.', $version );
-		$version       = $version_parts[0];
-
-		if ( 'minor' === $release ) {
-			$version .= '.' . $version_parts[1];
-		}
-
-		foreach ( $extensions as $file => $plugin ) {
-			$plugin_version_parts = explode( '.', $plugin[ self::VERSION_TESTED_HEADER ] );
-			$plugin_version = $plugin_version_parts[0];
-
-			if ( 'minor' === $release ) {
-				$plugin_version .= '.' . $plugin_version_parts[1];
-			}
-
-			if ( version_compare( $plugin_version, $version, '<' ) && is_plugin_active( $file ) ) {
-				$untested[ $file ] = $plugin;
-			}
-		}
-
-		return $untested;
-	}
-
-	/**
-	 * Get plugins that have a valid value for a specific header.
-	 *
-	 * @param string $header
-	 * @return array of plugin info arrays
-	 */
-	protected function get_plugins_with_header( $header ) {
-		$plugins = get_plugins();
-		$matches = array();
-
-		foreach ( $plugins as $file => $plugin ) {
-			if ( ! empty( $plugin[ $header ] ) ) {
-				$matches[ $file ] = $plugin;
-			}
-		}
-
-		return $matches;
-	}
-}
-new WC_Admin_Plugin_Updates();