Remove enabled/set_enabled from DemuxerStream interface

media/base/fake_text_track_stream.cc

Index: media/base/fake_text_track_stream.cc
diff --git a/media/base/fake_text_track_stream.cc b/media/base/fake_text_track_stream.cc
index b522c3f3b4c9cc9be8c2d64554d63ff7ad33e73f..5d830db24bc32de339a1e9b80a9dc662926374e0 100644
--- a/media/base/fake_text_track_stream.cc
+++ b/media/base/fake_text_track_stream.cc
@@ -46,14 +46,6 @@ VideoRotation FakeTextTrackStream::video_rotation() {
   return VIDEO_ROTATION_0;
 }
 
-bool FakeTextTrackStream::enabled() const {
-  return true;
-}
-
-void FakeTextTrackStream::set_enabled(bool enabled, base::TimeDelta timestamp) {
-  NOTIMPLEMENTED();
-}
-
 void FakeTextTrackStream::SatisfyPendingRead(
     const base::TimeDelta& start,
     const base::TimeDelta& duration,