Remove support for attribute event listeners.

client/dom/generated/src/wrapping/_HTMLInputElementWrappingImplementation.dart

 // Copyright (c) 2011, 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.
 
 // WARNING: Do not edit - generated code.
 
 class _HTMLInputElementWrappingImplementation extends _HTMLElementWrappingImplementation implements HTMLInputElement {
   _HTMLInputElementWrappingImplementation() : super() {}
 
   static create__HTMLInputElementWrappingImplementation() native {
@@ skipping 137 matching lines @@
 
   void set multiple(bool value) { _set_multiple(this, value); }
   static void _set_multiple(var _this, bool value) native;
 
   String get name() { return _get_name(this); }
   static String _get_name(var _this) native;
 
   void set name(String value) { _set_name(this, value); }
   static void _set_name(var _this, String value) native;
 
-  EventListener get onwebkitspeechchange() { return _get_onwebkitspeechchange(this); }
-  static EventListener _get_onwebkitspeechchange(var _this) native;
-
-  void set onwebkitspeechchange(EventListener value) { _set_onwebkitspeechchange(this, value); }
-  static void _set_onwebkitspeechchange(var _this, EventListener value) native;
-
   String get pattern() { return _get_pattern(this); }
   static String _get_pattern(var _this) native;
 
   void set pattern(String value) { _set_pattern(this, value); }
   static void _set_pattern(var _this, String value) native;
 
   String get placeholder() { return _get_placeholder(this); }
   static String _get_placeholder(var _this) native;
 
   void set placeholder(String value) { _set_placeholder(this, value); }
@@ skipping 161 matching lines @@
     } else {
       _stepUp_2(this, n);
       return;
     }
   }
   static void _stepUp(receiver) native;
   static void _stepUp_2(receiver, n) native;
 
   String get typeName() { return "HTMLInputElement"; }
 }