Bug 1444479 - P9. Remove WMF audio decoder channel limit. r=padenot

MozReview-Commit-ID: 4xj1Cd0ZzrA

dom/media/platforms/wmf/WMFAudioMFTManager.cpp

@@ -220,11 +220,6 @@ WMFAudioMFTManager::UpdateOutputType()
     mChannelsMap = AudioConfig::ChannelLayout::UNKNOWN_MAP;
   }
 
-  AudioConfig::ChannelLayout layout(mAudioChannels);
-  if (!layout.IsValid()) {
-    return E_FAIL;
-  }
-
   return S_OK;
 }