Remove AudioContext createChannelMerger() method until thread safety issues can be properly addre...

AudioContext.idl

 /*
  * Copyright (C) 2010, Google Inc. All rights reserved.
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 57 matching lines @@
         LowPass2FilterNode createLowPass2Filter();
         HighPass2FilterNode createHighPass2Filter();
         AudioPannerNode createPanner();
         ConvolverNode createConvolver();
         DynamicsCompressorNode createDynamicsCompressor();
         RealtimeAnalyserNode createAnalyser();
         JavaScriptAudioNode createJavaScriptNode(in unsigned long bufferSize);
 
         // Channel splitting and merging
         AudioChannelSplitter createChannelSplitter();
-        AudioChannelMerger createChannelMerger();
 
         // Offline rendering
         // void prepareOfflineBufferRendering(in unsigned long numberOfChannels, in unsigned long numberOfFrames, in float sampleRate);
         attribute EventListener oncomplete;
         void startRendering();
     };
 }