Removing deprecated events syntax.

sdk/lib/web_audio/dart2js/web_audio_dart2js.dart

 library dart.dom.web_audio;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:html';
 import 'dart:html_common';
 import 'dart:_foreign_helper' show JS;
 // DO NOT EDIT
 // Auto-generated dart:audio library.
 
@@ skipping 162 matching lines @@
 // BSD-style license that can be found in the LICENSE file.
 
 
 @DomName('AudioContext')
 class AudioContext extends EventTarget native "*AudioContext" {
 
   @DomName('AudioContext.completeEvent')
   @DocsEditable
   static const EventStreamProvider<Event> completeEvent = const EventStreamProvider<Event>('complete');
 
-  @DocsEditable
-  @DomName('EventTarget.addEventListener, EventTarget.removeEventListener, EventTarget.dispatchEvent')
-  @deprecated
-  AudioContextEvents get on =>
-    new AudioContextEvents(this);
-
   @DomName('AudioContext.activeSourceCount')
   @DocsEditable
   final int activeSourceCount;
 
   @DomName('AudioContext.currentTime')
   @DocsEditable
   final num currentTime;
 
   @DomName('AudioContext.destination')
   @DocsEditable
@@ skipping 103 matching lines @@
           bufferSize, numberOfInputChannels, numberOfOutputChannels);
     } else if (?numberOfInputChannels) {
       return JS('ScriptProcessorNode', '#.call(#, #, #)', function, this,
           bufferSize, numberOfInputChannels);
     } else {
       return JS('ScriptProcessorNode', '#.call(#, #)', function, this,
           bufferSize);
     }
   }
 }
-
-@DocsEditable
-@deprecated
-class AudioContextEvents extends Events {
-  @DocsEditable
-  AudioContextEvents(EventTarget _ptr) : super(_ptr);
-
-  @DocsEditable
-  EventListenerList get complete => this['complete'];
-}
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 @DocsEditable
 @DomName('AudioDestinationNode')
 class AudioDestinationNode extends AudioNode native "*AudioDestinationNode" {
 
   @DomName('AudioDestinationNode.numberOfChannels')
@@ skipping 509 matching lines @@
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 @DocsEditable
 @DomName('WaveTable')
 class WaveTable native "*WaveTable" {
 }