bd05f0ba52
Broken for PeerConnection either way (since VP9 support is announced) and would fail on a CHECK apart from generating incorrect offers/answers. This isn't a flag that we want to support, so it's better to remove the foot-shooting gun. BUG= R=asapersson@webrtc.org, kjellander@webrtc.org, phoglund@webrtc.org, stefan@webrtc.org Review URL: https://codereview.webrtc.org/1451663002 . Cr-Commit-Position: refs/heads/master@{#10676}