message: Fix a copy.bara issue.
diff: @@ -34,9 +34,6 @@ namespace tensorflow {
  namespace profiler {
  namespace client {
  -using ::tensorflow::grpc::TPUProfileAnalysis;
  -using ::tensorflow::grpc::TPUProfiler;
  -
  constexpr uint64 kMaxEvents = 1000000;
  string GetCurrentTimeStampAsString() {
  