Remove dead code related to media device enumerations and monitoring.

content/renderer/media/user_media_client_impl.cc

Index: content/renderer/media/user_media_client_impl.cc
diff --git a/content/renderer/media/user_media_client_impl.cc b/content/renderer/media/user_media_client_impl.cc
index c3fdcac03d9a95739e8dc2772a858074b57b66f2..766ca8c73cdde201c5d439a94c7232b1c2f7721a 100644
--- a/content/renderer/media/user_media_client_impl.cc
+++ b/content/renderer/media/user_media_client_impl.cc
@@ -612,14 +612,6 @@ void UserMediaClientImpl::OnCreateNativeTracksCompleted(
   DeleteUserMediaRequestInfo(request);
 }
 
-// TODO(guidou): Remove once this method is removed from the
-// MediaStreamDispatcherEventHandler interface. http://648183.
-void UserMediaClientImpl::OnDevicesEnumerated(
-    int request_id,
-    const StreamDeviceInfoArray& device_array) {
-  NOTREACHED();
-}
-
 void UserMediaClientImpl::OnDeviceOpened(
     int request_id,
     const std::string& label,
@@ -635,12 +627,6 @@ void UserMediaClientImpl::OnDeviceOpenFailed(int request_id) {
   NOTIMPLEMENTED();
 }
 
-// TODO(guidou): Remove once this method is removed from the
-// MediaStreamDispatcherEventHandler interface. http://648183.
-void UserMediaClientImpl::OnDevicesChanged() {
-  NOTREACHED();
-}
-
 void UserMediaClientImpl::DevicesChanged(
     MediaDeviceType type,
     const MediaDeviceInfoArray& device_infos) {