Remove Absolute Send Time from list of supported header extensions for audio streams.

webrtc/audio/audio_receive_stream.cc

Index: webrtc/audio/audio_receive_stream.cc
diff --git a/webrtc/audio/audio_receive_stream.cc b/webrtc/audio/audio_receive_stream.cc
index e2f8f148365dc466d994f7870d747a39c9e56ef8..0d75307b4b44e4759694a81a15c393b0b65a26d4 100644
--- a/webrtc/audio/audio_receive_stream.cc
+++ b/webrtc/audio/audio_receive_stream.cc
@@ -124,9 +124,6 @@ AudioReceiveStream::AudioReceiveStream(
       bool registered = rtp_header_parser_->RegisterRtpHeaderExtension(
           kRtpExtensionTransportSequenceNumber, extension.id);
       RTC_DCHECK(registered);
-    } else if (extension.uri == RtpExtension::kAbsSendTimeUri) {
-      LOG(LS_WARNING) << RtpExtension::kAbsSendTimeUri
-                      << " is no longer supported for audio.";
     } else {
       RTC_NOTREACHED() << "Unsupported RTP extension.";
     }