Remove SetVideoLogging/SetAudioLogging from ChannelManager and down the stack.

talk/media/webrtc/webrtcvideoengine2.cc

Index: talk/media/webrtc/webrtcvideoengine2.cc
diff --git a/talk/media/webrtc/webrtcvideoengine2.cc b/talk/media/webrtc/webrtcvideoengine2.cc
index 0f1587d54fbe0ec208f88f633a55760b956b5492..1612183c7fe50b11d5b6867554a75cb5a0848146 100644
--- a/talk/media/webrtc/webrtcvideoengine2.cc
+++ b/talk/media/webrtc/webrtcvideoengine2.cc
@@ -620,16 +620,6 @@ WebRtcVideoEngine2::rtp_header_extensions() const {
   return rtp_header_extensions_;
 }
 
-void WebRtcVideoEngine2::SetLogging(int min_sev, const char* filter) {
-  // TODO(pbos): Set up logging.
-  LOG(LS_VERBOSE) << "SetLogging: " << min_sev << '"' << filter << '"';
-  // if min_sev == -1, we keep the current log level.
-  if (min_sev < 0) {
-    RTC_DCHECK(min_sev == -1);
-    return;
-  }
-}
-
 void WebRtcVideoEngine2::SetExternalDecoderFactory(
     WebRtcVideoDecoderFactory* decoder_factory) {
   RTC_DCHECK(!initialized_);