Clean up the media stream audio track code

content/renderer/media/media_stream_audio_processor_options.h

Index: content/renderer/media/media_stream_audio_processor_options.h
diff --git a/content/renderer/media/media_stream_audio_processor_options.h b/content/renderer/media/media_stream_audio_processor_options.h
index 6f6526f18c8a4309a4fd4c184406321858f318a6..43d5e6a0f5dcda6293456f8bbe4814857dfe5797 100644
--- a/content/renderer/media/media_stream_audio_processor_options.h
+++ b/content/renderer/media/media_stream_audio_processor_options.h
@@ -58,10 +58,6 @@ class CONTENT_EXPORT MediaAudioConstraints {
                         int effects);
   virtual ~MediaAudioConstraints();
 
-  // Checks if any audio constraints are set that requires audio processing to
-  // be applied.
-  bool NeedsAudioProcessing();
-
   // Gets the property of the constraint named by |key| in |constraints_|.
   // Returns the constraint's value if the key is found; Otherwise returns the
   // default value of the constraint.