message: Remove string based event type ProcessBatch and BatchingSessionRun.
diff: @@ -71,13 +71,6 @@ int64 GetEventType(bool is_host_plane, const EventNode& event) {
  // KernelExecute event types.
  return *kernel_event_type;
  } else {
  - absl::string_view name = event.GetEventVisitor().Name();
  - // Legacy event names appended with arguments.
  - if (absl::StartsWith(name, "BatchingSessionRun")) {
  - return HostEventType::kBatchingSessionRun;
  - } else if (absl::StartsWith(name, "ProcessBatch")) {
  - return HostEventType::kProcessBatch;
  - }
  return HostEventType::kUnknownHostEventType;
  }
  }
  