build: remove gradle cache

Author: linyimin0812

.github/workflows/build.yml

@@ -23,13 +23,6 @@ jobs:
           path: ~/.sonar/cache
           key: ${{ runner.os }}-sonar
           restore-keys: ${{ runner.os }}-sonar
-      - name: Cache Gradle packages
-        uses: actions/cache@v1
-        with:
-          path: ~/.gradle/caches
-          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
-          restore-keys: ${{ runner.os }}-gradle
-          action: 'delete'
       - name: Build and analyze
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}  # Needed to get PR information, if any