message: Remove read limit of ReadBinaryProto.
diff: @@ -544,15 +544,7 @@ Status ReadBinaryProto(Env* env, const string& fname,
  std::unique_ptr<RandomAccessFile> file;
  TF_RETURN_IF_ERROR(env->NewRandomAccessFile(fname, &file));
  std::unique_ptr<FileStream> stream(new FileStream(file.get()));
  -
  - // TODO(jiayq): the following coded stream is for debugging purposes to allow
  - // one to parse arbitrarily large messages for MessageLite. One most likely
  - // doesn't want to put protobufs larger than 64MB on Android, so we should
  - // eventually remove this and quit loud when a large protobuf is passed in.
  protobuf::io::CodedInputStream coded_stream(stream.get());
  - // Total bytes hard limit / warning limit are set to 1GB and 512MB
  - // respectively.
  - coded_stream.SetTotalBytesLimit(1024LL << 20, 512LL << 20);
  if (!proto->ParseFromCodedStream(&coded_stream) ||
  !coded_stream.ConsumedEntireMessage()) {
  