Delete the step as ymlformat didn't like it being commented out

.github/workflows/build.yml

@@ -371,18 +371,6 @@ jobs:
           # Some platforms share a cache; it's not a 1:1 mapping of either targetPlatform or vrsdk, so we have a distinct variable for which cache to use
           key: Library_${{ matrix.cache }}_${{ env.UNITY_VERSION }}
 
-#      - name: Restore Library/PackageCache
-#        id: cache_packagecache
-#        uses: actions/cache/restore@v4
-#        env:
-#          SEGMENT_DOWNLOAD_TIMEOUT_MINS: 10
-#        with:
-#          path: Library/PackageCache
-#          key: Library_PackageCache_${{ env.UNITY_VERSION }}_${{ hashFiles('Packages/packages-lock.json') }}
-#          restore-keys: |
-#            Library_PackageCache_${{ env.UNITY_VERSION }}
-#            Library_PackageCache
-
       - name: Remove problematic packages
         if: ${{ matrix.packages_to_remove }}
         run: |