Clean up abs-send-time for audio.

webrtc/audio/audio_send_stream.cc

Index: webrtc/audio/audio_send_stream.cc
diff --git a/webrtc/audio/audio_send_stream.cc b/webrtc/audio/audio_send_stream.cc
index 51f90733432b51068a817eb7696617a59c448ba6..39066720cb3201bd098d5686b7c2c20c7ab7e0f2 100644
--- a/webrtc/audio/audio_send_stream.cc
+++ b/webrtc/audio/audio_send_stream.cc
@@ -75,9 +75,7 @@ AudioSendStream::AudioSendStream(
   channel_proxy_->RegisterExternalTransport(config.send_transport);
 
   for (const auto& extension : config.rtp.extensions) {
-    if (extension.uri == RtpExtension::kAbsSendTimeUri) {
-      channel_proxy_->SetSendAbsoluteSenderTimeStatus(true, extension.id);
-    } else if (extension.uri == RtpExtension::kAudioLevelUri) {
+    if (extension.uri == RtpExtension::kAudioLevelUri) {
       channel_proxy_->SetSendAudioLevelIndicationStatus(true, extension.id);
     } else if (extension.uri == RtpExtension::kTransportSequenceNumberUri) {
       channel_proxy_->EnableSendTransportSequenceNumber(extension.id);