Remove node_modules caching to prevent dir related errors.

.github/workflows/pr-build-and-e2e-tests.yml

@@ -22,37 +22,10 @@ jobs:
           path: ${{ steps.build.outputs.zip_path }}
           retention-days: 7
 
-  e2e-tests-cache:
-    name: Set e2e caches for running tests
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout code.
-        uses: actions/checkout@v2
-        
-      - name: Load Node.js.
-        uses: actions/setup-node@v2
-        with:
-          node-version: '12'
-      
-      # From https://docs.github.com/en/actions/guides/caching-dependencies-to-speed-up-workflows#using-the-cache-action
-      - name: Cache node modules
-        uses: actions/cache@v2
-        id: cache_node_modules
-        env:
-          cache-name: cache-node-modules
-        with:
-          path: ./node_modules
-          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-build-${{ env.cache-name }}-
-
-      - name: Run npm install, and cache if they aren't.
-        run: npm install
-    
   e2e-tests-run:
     name: Runs E2E tests.
     runs-on: ubuntu-latest
-    needs: [ build, e2e-tests-cache ]
+    needs: [ build ]
     steps:
 
       - name: Create dirs.
@@ -67,20 +40,6 @@ jobs:
         with:
           path: package/woocommerce
 
-      # From https://docs.github.com/en/actions/guides/caching-dependencies-to-speed-up-workflows#using-the-cache-action
-      - name: Cache node modules
-        uses: actions/cache@v2
-        id: cache_node_modules
-        env:
-          cache-name: cache-node-modules
-        with:
-          path: ./node_modules
-          key: ${{ runner.os }}-build-${{ hashFiles('package-lock.json') }}
-          restore-keys: ${{ runner.os }}-build-${{ env.cache-name }}-
-
-      - name: Restore node modules from cache, if available.
-        run: mv ./node_modules package/woocommerce/node_modules
-
       - name: Run npm install.
         working-directory: package/woocommerce
         run: npm install