Remove generated directories with 100s of files.

client/dom/generated/src/wrapping/_HTMLKeygenElementWrappingImplementation.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 _HTMLKeygenElementWrappingImplementation extends _HTMLElementWrappingImplementation implements HTMLKeygenElement {
-  _HTMLKeygenElementWrappingImplementation() : super() {}
-
-  static create__HTMLKeygenElementWrappingImplementation() native {
-    return new _HTMLKeygenElementWrappingImplementation();
-  }
-
-  bool get autofocus() { return _get_autofocus(this); }
-  static bool _get_autofocus(var _this) native;
-
-  void set autofocus(bool value) { _set_autofocus(this, value); }
-  static void _set_autofocus(var _this, bool value) native;
-
-  String get challenge() { return _get_challenge(this); }
-  static String _get_challenge(var _this) native;
-
-  void set challenge(String value) { _set_challenge(this, value); }
-  static void _set_challenge(var _this, String value) native;
-
-  bool get disabled() { return _get_disabled(this); }
-  static bool _get_disabled(var _this) native;
-
-  void set disabled(bool value) { _set_disabled(this, value); }
-  static void _set_disabled(var _this, bool value) native;
-
-  HTMLFormElement get form() { return _get_form(this); }
-  static HTMLFormElement _get_form(var _this) native;
-
-  String get keytype() { return _get_keytype(this); }
-  static String _get_keytype(var _this) native;
-
-  void set keytype(String value) { _set_keytype(this, value); }
-  static void _set_keytype(var _this, String value) native;
-
-  NodeList get labels() { return _get_labels(this); }
-  static NodeList _get_labels(var _this) 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;
-
-  String get type() { return _get_type(this); }
-  static String _get_type(var _this) native;
-
-  String get validationMessage() { return _get_validationMessage(this); }
-  static String _get_validationMessage(var _this) native;
-
-  ValidityState get validity() { return _get_validity(this); }
-  static ValidityState _get_validity(var _this) native;
-
-  bool get willValidate() { return _get_willValidate(this); }
-  static bool _get_willValidate(var _this) native;
-
-  bool checkValidity() {
-    return _checkValidity(this);
-  }
-  static bool _checkValidity(receiver) native;
-
-  void setCustomValidity(String error) {
-    _setCustomValidity(this, error);
-    return;
-  }
-  static void _setCustomValidity(receiver, error) native;
-
-  String get typeName() { return "HTMLKeygenElement"; }
-}