Remove support for old getUserMedia video constraints algorithm.

content/renderer/pepper/pepper_media_stream_video_track_host.cc

Index: content/renderer/pepper/pepper_media_stream_video_track_host.cc
diff --git a/content/renderer/pepper/pepper_media_stream_video_track_host.cc b/content/renderer/pepper/pepper_media_stream_video_track_host.cc
index 52911b6ac47c94c82a7afaa497df7269ae58166a..4924a9879d97ec851e78cde766f75162653cfdde 100644
--- a/content/renderer/pepper/pepper_media_stream_video_track_host.cc
+++ b/content/renderer/pepper/pepper_media_stream_video_track_host.cc
@@ -446,7 +446,6 @@ class PepperMediaStreamVideoTrackHost::VideoSource final
  private:
   base::Optional<media::VideoCaptureFormat> GetCurrentFormatImpl()
       const override {
-    DCHECK(!IsOldVideoConstraints());
     if (host_) {
       return base::Optional<media::VideoCaptureFormat>(
           media::VideoCaptureFormat(