remove unused cache

Author: dplewis

.github/workflows/release-manual-docs.yml

@@ -25,13 +25,6 @@ jobs:
         uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ env.PHP_VERSION }}
-      - name: Cache Node.js modules
-        uses: actions/cache@v3
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-${{ env.NODE_VERSION }}-${{ hashFiles('**/package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-node-${{ env.NODE_VERSION }}-
       - name: Generate Docs
         run: |
           composer install