ppc64le CI build always fails

Currently we have a build triggered here https://powerci.osuosl.org/job/build-envoy-static-master/

it always fails with:

```console
Extracting Bazel installation...
Starting local Bazel server and connecting to it...
INFO: Reading rc options for 'build' from /home/alfred/jenkins/workspace/build-envoy-static-master/.bazelrc:
'build' options: --color=yes --workspace_status_command=bash bazel/get_workspace_status --incompatible_strict_action_env --host_force_python=PY3 --java_runtime_version=remotejdk_11 --tool_java_runtime_version=remotejdk_11 --platform_mappings=bazel/platform_mappings --copt=-DABSL_MIN_LOG_LEVEL=4 --action_env=CC --host_action_env=CC --action_env=CXX --host_action_env=CXX --action_env=LLVM_CONFIG --host_action_env=LLVM_CONFIG --action_env=PATH --host_action_env=PATH --enable_platform_specific_config --test_summary=terse --incompatible_config_setting_private_default_visibility --incompatible_enforce_config_setting_visibility --define absl=1 --@com_googlesource_googleurl//build_config:system_icu=0 --test_env=HEAPCHECK=normal --test_env=PPROF_PATH
ERROR: --host_action_env=CC :: Unrecognized option: --host_action_env=CC
Build step 'Execute shell' marked build as failure
Stopping Docker container after build completion
Finished: FAILURE

```

im guessing a bazel version or similar, but not sure

apart from wasted cycles it means we always have a failing status badge - we should either fix or remove the badge if its not expected to pass and noone intends to fix