Remove simulcast bitrate modes.

talk/app/webrtc/webrtcsession.cc

Index: talk/app/webrtc/webrtcsession.cc
diff --git a/talk/app/webrtc/webrtcsession.cc b/talk/app/webrtc/webrtcsession.cc
index af1dc61a93b184f8d9f26a8615aafb6fc2e077a3..95abeab77a9c9e6dc6e1a1033b083d9f41535e7a 100644
--- a/talk/app/webrtc/webrtcsession.cc
+++ b/talk/app/webrtc/webrtcsession.cc
@@ -696,22 +696,6 @@ bool WebRtcSession::Initialize(
       MediaConstraintsInterface::kHighStartBitrate,
       &video_options_.video_start_bitrate);
 
-  if (FindConstraint(
-      constraints,
-      MediaConstraintsInterface::kVeryHighBitrate,
-      &value,
-      NULL)) {
-    video_options_.video_highest_bitrate.Set(
-        cricket::VideoOptions::VERY_HIGH);
-  } else if (FindConstraint(
-      constraints,
-      MediaConstraintsInterface::kHighBitrate,
-      &value,
-      NULL)) {
-    video_options_.video_highest_bitrate.Set(
-        cricket::VideoOptions::HIGH);
-  }
-
   SetOptionFromOptionalConstraint(constraints,
       MediaConstraintsInterface::kCombinedAudioVideoBwe,
       &audio_options_.combined_audio_video_bwe);