Remove generated directories with 100s of files.

client/dom/generated/src/wrapping/_WebKitAnimationWrappingImplementation.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 _WebKitAnimationWrappingImplementation extends DOMWrapperBase implements WebKitAnimation {
-  _WebKitAnimationWrappingImplementation() : super() {}
-
-  static create__WebKitAnimationWrappingImplementation() native {
-    return new _WebKitAnimationWrappingImplementation();
-  }
-
-  num get delay() { return _get_delay(this); }
-  static num _get_delay(var _this) native;
-
-  int get direction() { return _get_direction(this); }
-  static int _get_direction(var _this) native;
-
-  num get duration() { return _get_duration(this); }
-  static num _get_duration(var _this) native;
-
-  num get elapsedTime() { return _get_elapsedTime(this); }
-  static num _get_elapsedTime(var _this) native;
-
-  void set elapsedTime(num value) { _set_elapsedTime(this, value); }
-  static void _set_elapsedTime(var _this, num value) native;
-
-  bool get ended() { return _get_ended(this); }
-  static bool _get_ended(var _this) native;
-
-  int get fillMode() { return _get_fillMode(this); }
-  static int _get_fillMode(var _this) native;
-
-  int get iterationCount() { return _get_iterationCount(this); }
-  static int _get_iterationCount(var _this) native;
-
-  String get name() { return _get_name(this); }
-  static String _get_name(var _this) native;
-
-  bool get paused() { return _get_paused(this); }
-  static bool _get_paused(var _this) native;
-
-  void pause() {
-    _pause(this);
-    return;
-  }
-  static void _pause(receiver) native;
-
-  void play() {
-    _play(this);
-    return;
-  }
-  static void _play(receiver) native;
-
-  String get typeName() { return "WebKitAnimation"; }
-}