diff --git a/includes/class-wc-order-factory.php b/includes/class-wc-order-factory.php
index 6a38ffd6c2d..db43ad596ba 100644
--- a/includes/class-wc-order-factory.php
+++ b/includes/class-wc-order-factory.php
@@ -97,7 +97,7 @@ class WC_Order_Factory {
 	 * Get the order ID depending on what was passed.
 	 *
 	 * @since 2.7.0
-	 * @param  mixed $product
+	 * @param  mixed $order
 	 * @return int|bool false on failure
 	 */
 	private static function get_order_id( $order ) {
diff --git a/includes/data-stores/abstract-wc-order-data-store-cpt.php b/includes/data-stores/abstract-wc-order-data-store-cpt.php
index 304a17b6445..3dc2c3eeb70 100644
--- a/includes/data-stores/abstract-wc-order-data-store-cpt.php
+++ b/includes/data-stores/abstract-wc-order-data-store-cpt.php
@@ -109,7 +109,7 @@ abstract class Abstract_WC_Order_Data_Store_CPT extends WC_Data_Store_CPT implem
 			wp_trash_post( $id );
 			$order->set_status( 'trash' );
 		}
-		do_action( 'woocommerce_delete_' . $post_type, $id );
+		do_action( 'woocommerce_delete_order', $id );
 	}
 
 	/*
diff --git a/includes/data-stores/interfaces/wc-order-data-store-interface.php b/includes/data-stores/interfaces/wc-order-data-store-interface.php
index c7c0478762a..578e11cb5b1 100644
--- a/includes/data-stores/interfaces/wc-order-data-store-interface.php
+++ b/includes/data-stores/interfaces/wc-order-data-store-interface.php
@@ -13,40 +13,6 @@ if ( ! defined( 'ABSPATH' ) ) {
  * @author   WooThemes
  */
 interface WC_Order_Data_Store_Interface {
-
-	/**
-	 * Read order items of a specific type from the database for this order.
-	 *
-	 * @param  WC_Order $order
-	 * @param  string $type
-	 * @return array
-	 */
-	public function read_items( $order, $type );
-
-	/**
-	 * Remove all line items (products, coupons, shipping, taxes) from the order.
-	 *
-	 * @param WC_Order
-	 * @param string $type Order item type. Default null.
-	 */
-	public function delete_items( $order, $type = null );
-
-	/**
-	 * Get token ids for an order.
-	 *
-	 * @param WC_Order
-	 * @return array
-	 */
-	public function get_payment_token_ids( $order );
-
-	/**
-	 * Update token ids for an order.
-	 *
-	 * @param WC_Order
-	 * @param array $token_ids
-	 */
-	public function update_payment_token_ids( $order, $token_ids );
-
 	/**
 	 * Get amount already refunded.
 	 *