Addressed bazelbuild/bazel#7480

tools/remote_build/include/rbe_remote_execution.bazelrc

@@ -20,11 +20,8 @@ import %workspace%/tools/remote_build/include/rbe_base_config.bazelrc
 # configure backend for remote execution
 build --remote_executor=grpcs://remotebuildexecution.googleapis.com
 
-build --spawn_strategy=remote
-build --strategy=Javac=remote
-build --strategy=Closure=remote
-build --genrule_strategy=remote
-build --remote_timeout=7200  # very large value to avoid problems like https://github.com/grpc/grpc/issues/20777
+# Very large value to avoid problems like https://github.com/grpc/grpc/issues/20777
+build --remote_timeout=7200
 
 # In the remote execution environment, each test gets its own docker containers
 # and port server won't be available.