Two minor cleanups in remoting protocol.

remoting/protocol/video_frame_pump.h

Index: remoting/protocol/video_frame_pump.h
diff --git a/remoting/protocol/video_frame_pump.h b/remoting/protocol/video_frame_pump.h
index 8a1b32deedc68a0ddf4c42a107bff5953cf29d27..5483400c8f9294b53fe39c2427b86b728dd652c2 100644
--- a/remoting/protocol/video_frame_pump.h
+++ b/remoting/protocol/video_frame_pump.h
@@ -70,9 +70,6 @@ class VideoStub;
 class VideoFramePump : public VideoStream,
                        public webrtc::DesktopCapturer::Callback {
  public:
-  // Enables timestamps for generated frames. Used for testing.
-  static void EnableTimestampsForTests();
-
   // Creates a VideoFramePump running capture, encode and network tasks on the
   // supplied TaskRunners. Video will be pumped to |video_stub|, which must
   // outlive the pump..