Delete VieRemb class, move functionality to PacketRouter.

webrtc/video/video_receive_stream.h

Index: webrtc/video/video_receive_stream.h
diff --git a/webrtc/video/video_receive_stream.h b/webrtc/video/video_receive_stream.h
index cb2c73fe2828334e17f2b4c56cf40a0a94e568da..73bacdd520e0d6cdf827a8dc48fc6c4f53707a56 100644
--- a/webrtc/video/video_receive_stream.h
+++ b/webrtc/video/video_receive_stream.h
@@ -35,7 +35,6 @@ class CallStats;
 class IvfFileWriter;
 class ProcessThread;
 class RTPFragmentationHeader;
-class VieRemb;
 class VCMTiming;
 class VCMJitterEstimator;
 
@@ -53,8 +52,7 @@ class VideoReceiveStream : public webrtc::VideoReceiveStream,
                      PacketRouter* packet_router,
                      VideoReceiveStream::Config config,
                      ProcessThread* process_thread,
-                     CallStats* call_stats,
-                     VieRemb* remb);
+                     CallStats* call_stats);
   ~VideoReceiveStream() override;
 
   const Config& config() const { return config_; }