Remove voe::Channel::StopReceive() and associated logic.

webrtc/voice_engine/channel.h

Index: webrtc/voice_engine/channel.h
diff --git a/webrtc/voice_engine/channel.h b/webrtc/voice_engine/channel.h
index 3b478cafb98c61d239791b18d9f88b8c6e630b23..c86820f2a5d933ab2d039274ff4f91cd7e64f8cd 100644
--- a/webrtc/voice_engine/channel.h
+++ b/webrtc/voice_engine/channel.h
@@ -88,7 +88,6 @@ class ChannelState {
     bool input_file_playing = false;
     bool playing = false;
     bool sending = false;
-    bool receiving = false;
   };
 
   ChannelState() {}
@@ -129,11 +128,6 @@ class ChannelState {
     state_.sending = enable;
   }
 
-  void SetReceiving(bool enable) {
-    rtc::CritScope lock(&lock_);
-    state_.receiving = enable;
-  }
-
  private:
   rtc::CriticalSection lock_;
   State state_;
@@ -189,9 +183,7 @@ class Channel
   int32_t StopPlayout();
   int32_t StartSend();
   int32_t StopSend();
-  int32_t StartReceiving();
-  int32_t StopReceiving();
-
+  void ResetDiscardedPacketCount();
   int32_t RegisterVoiceEngineObserver(VoiceEngineObserver& observer);
   int32_t DeRegisterVoiceEngineObserver();
 
@@ -393,7 +385,6 @@ class Channel
   int32_t ChannelId() const { return _channelId; }
   bool Playing() const { return channel_state_.Get().playing; }
   bool Sending() const { return channel_state_.Get().sending; }
-  bool Receiving() const { return channel_state_.Get().receiving; }
   bool ExternalTransport() const {
     rtc::CritScope cs(&_callbackCritSect);
     return _externalTransport;