webaudio: Remove AudioNode::DisconnectWithoutException.

It has no callers and is therefore dead code.

Change-Id: Id7888a8898607ac844460bf429cc81f682b56a5f
Reviewed-on: https://chromium-review.googlesource.com/1126520Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Raymond Toy <rtoy@chromium.org>
Commit-Queue: Jeremy Roman <jbroman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#573435}

third_party/blink/renderer/modules/webaudio/audio_node.cc

@@ -987,16 +987,6 @@ void AudioNode::disconnect(AudioParam* destination_param,
   }
 }
 
-void AudioNode::DisconnectWithoutException(unsigned output_index) {
-  DCHECK(IsMainThread());
-  BaseAudioContext::GraphAutoLocker locker(context());
-
-  // Sanity check input and output indices.
-  if (output_index >= Handler().NumberOfOutputs())
-    return;
-  DisconnectAllFromOutput(output_index);
-}
-
 unsigned AudioNode::numberOfInputs() const {
   return Handler().NumberOfInputs();
 }

third_party/blink/renderer/modules/webaudio/audio_node.h

@@ -346,9 +346,6 @@ class MODULES_EXPORT AudioNode : public EventTargetWithInlineData {
 
   // Called inside AudioHandler constructors.
   void DidAddOutput(unsigned number_of_outputs);
-  // Like disconnect, but no exception is thrown if the outputIndex is invalid.
-  // Just do nothing in that case.
-  void DisconnectWithoutException(unsigned output_index);
 
  protected:
   explicit AudioNode(BaseAudioContext&);