Clean up abs-send-time for audio.

webrtc/voice_engine/channel.cc

Index: webrtc/voice_engine/channel.cc
diff --git a/webrtc/voice_engine/channel.cc b/webrtc/voice_engine/channel.cc
index deea05772716abfaabadcf0725ece599ace6cb36..570ccda7da5e7754d354661ee39ea1389872009b 100644
--- a/webrtc/voice_engine/channel.cc
+++ b/webrtc/voice_engine/channel.cc
@@ -2383,21 +2383,6 @@ int Channel::SetReceiveAudioLevelIndicationStatus(bool enable,
   return 0;
 }
 
-int Channel::SetSendAbsoluteSenderTimeStatus(bool enable, unsigned char id) {
-  return SetSendRtpHeaderExtension(enable, kRtpExtensionAbsoluteSendTime, id);
-}
-
-int Channel::SetReceiveAbsoluteSenderTimeStatus(bool enable, unsigned char id) {
-  rtp_header_parser_->DeregisterRtpHeaderExtension(
-      kRtpExtensionAbsoluteSendTime);
-  if (enable &&
-      !rtp_header_parser_->RegisterRtpHeaderExtension(
-          kRtpExtensionAbsoluteSendTime, id)) {
-    return -1;
-  }
-  return 0;
-}
-
 void Channel::EnableSendTransportSequenceNumber(int id) {
   int ret =
       SetSendRtpHeaderExtension(true, kRtpExtensionTransportSequenceNumber, id);