remove commented workflow

.github/workflows/ci.yml

@@ -128,32 +128,6 @@ jobs:
     - name: run tests
       run: ./ci/do_ci.sh cmake.test_example_plugin
 
-  # bazel build is disabled for gcc 4.8 compiler as grpc lib
-  # used for otlp exporter doesn't work with gcc4.8
-  #bazel_gcc_48_test:
-  #  name: Bazel gcc 4.8
-  #  runs-on: ubuntu-18.04
-  #  steps:
-  #  - uses: actions/checkout@v2
-  #    with:
-  #      submodules: 'recursive'
-  #  - name: Mount Bazel Cache
-  #    uses: actions/cache@v2
-  #    env:
-  #      cache-name: bazel_cache
-  #    with:
-  #      path: /home/runner/.cache/bazel
-  #      key: bazel_gcc_48_test
-  #  - name: setup
-  #    run: |
-  #      sudo ./ci/setup_ci_environment.sh
-  #      sudo ./ci/install_bazelisk.sh
-  #      sudo ./ci/install_gcc48.sh
-  #  - name: run tests
-  #    run: ./ci/do_ci.sh bazel.legacy.test
-  #    env:
-  #      CC: /usr/bin/gcc-4.8
-
   bazel_test:
     name: Bazel
     runs-on: ubuntu-latest