Revert "Refresh dart:dom"

client/dom/generated/src/interface/HTMLTrackElement.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.
 
 interface HTMLTrackElement extends HTMLElement {
 
-  static final int ERROR = 3;
-
-  static final int LOADED = 2;
-
-  static final int LOADING = 1;
-
-  static final int NONE = 0;
-
   bool get isDefault();
 
   void set isDefault(bool value);
 
   String get kind();
 
   void set kind(String value);
 
   String get label();
 
   void set label(String value);
 
-  int get readyState();
-
   String get src();
 
   void set src(String value);
 
   String get srclang();
 
   void set srclang(String value);
 
   TextTrack get track();
 }