Bug 1447982 - Remove early exit when no change on Reconfigure. r=padenot

We don't want to skip all remaining steps. For now it just affects some logging,
but there may be new ones added in the future.

MozReview-Commit-ID: 7fBdgLNT780

--HG--
extra : rebase_source : dc5113298c1dbadd23c19127349a4a66cd460b4c

dom/media/webrtc/MediaEngineWebRTCAudio.cpp

@@ -471,10 +471,6 @@ MediaEngineWebRTCMicrophoneSource::UpdateSingleSource(
 
     case kStarted:
     case kStopped:
-      if (prefs == mLastPrefs) {
-        return NS_OK;
-      }
-
       if (prefs.mChannels != mLastPrefs.mChannels) {
         // If the channel count changed, tell the MSG to open a new driver with
         // the correct channel count.