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 c434b1d61cd0c6621fba8f78c0a9b1c2c9ca5368..3d195eb141aaf47af41f7d9bcdfbf5fcfb7a67b9 100644
--- a/webrtc/voice_engine/channel.cc
+++ b/webrtc/voice_engine/channel.cc
@@ -2361,21 +2361,6 @@ 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);