Remove WebrtcDummyVideoEncoder::SetChannelParameters function.

Cleanup related to https://webrtc-review.googlesource.com/c/src/+/108861

Bug: webrtc:9946
Change-Id: I888142e2909a12232e7385edc1644d314ced7d10
Reviewed-on: https://chromium-review.googlesource.com/c/1317857
Commit-Queue: Philip Eliasson <philipel@chromium.org>
Reviewed-by: Lambros Lambrou <lambroslambrou@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606022}

remoting/protocol/webrtc_dummy_video_encoder.cc

@@ -115,15 +115,6 @@ int32_t WebrtcDummyVideoEncoder::Encode(
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
-int32_t WebrtcDummyVideoEncoder::SetChannelParameters(uint32_t packet_loss,
-                                                      int64_t rtt) {
-  main_task_runner_->PostTask(
-      FROM_HERE, base::Bind(&VideoChannelStateObserver::OnChannelParameters,
-                            video_channel_state_observer_, packet_loss,
-                            base::TimeDelta::FromMilliseconds(rtt)));
-  return WEBRTC_VIDEO_CODEC_OK;
-}
-
 int32_t WebrtcDummyVideoEncoder::SetRates(uint32_t bitrate,
                                           uint32_t framerate) {
   main_task_runner_->PostTask(

remoting/protocol/webrtc_dummy_video_encoder.h

@@ -50,7 +50,6 @@ class WebrtcDummyVideoEncoder : public webrtc::VideoEncoder {
   int32_t Encode(const webrtc::VideoFrame& frame,
                  const webrtc::CodecSpecificInfo* codec_specific_info,
                  const std::vector<webrtc::FrameType>* frame_types) override;
-  int32_t SetChannelParameters(uint32_t packet_loss, int64_t rtt) override;
   int32_t SetRates(uint32_t bitrate, uint32_t framerate) override;
 
   webrtc::EncodedImageCallback::Result SendEncodedFrame(