Remove WebAudio doppler effect API surface (already no-ops)

third_party/WebKit/Source/modules/webaudio/PannerNode.cpp

 /*
  * Copyright (C) 2010, Google 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 720 matching lines @@
 void PannerNode::setPosition(float x, float y, float z)
 {
     pannerHandler().setPosition(x, y, z);
 }
 
 void PannerNode::setOrientation(float x, float y, float z)
 {
     pannerHandler().setOrientation(x, y, z);
 }
 
-void PannerNode::setVelocity(float x, float y, float z)
-{
-    // The velocity is not used internally and cannot be read back by scripts,
-    // so it can be ignored entirely.
-}
-
 String PannerNode::distanceModel() const
 {
     return pannerHandler().distanceModel();
 }
 
 void PannerNode::setDistanceModel(const String& model)
 {
     pannerHandler().setDistanceModel(model);
 }
 
@@ skipping 64 matching lines @@
     visitor->trace(m_positionZ);
 
     visitor->trace(m_orientationX);
     visitor->trace(m_orientationY);
     visitor->trace(m_orientationZ);
 
     AudioNode::trace(visitor);
 }
 
 } // namespace blink