Remove generated directories with 100s of files.

client/dom/generated/src/wrapping/_HTMLBodyElementWrappingImplementation.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 _HTMLBodyElementWrappingImplementation extends _HTMLElementWrappingImplementation implements HTMLBodyElement {
-  _HTMLBodyElementWrappingImplementation() : super() {}
-
-  static create__HTMLBodyElementWrappingImplementation() native {
-    return new _HTMLBodyElementWrappingImplementation();
-  }
-
-  String get aLink() { return _get_aLink(this); }
-  static String _get_aLink(var _this) native;
-
-  void set aLink(String value) { _set_aLink(this, value); }
-  static void _set_aLink(var _this, String value) native;
-
-  String get background() { return _get_background(this); }
-  static String _get_background(var _this) native;
-
-  void set background(String value) { _set_background(this, value); }
-  static void _set_background(var _this, String value) native;
-
-  String get bgColor() { return _get_bgColor(this); }
-  static String _get_bgColor(var _this) native;
-
-  void set bgColor(String value) { _set_bgColor(this, value); }
-  static void _set_bgColor(var _this, String value) native;
-
-  String get link() { return _get_link(this); }
-  static String _get_link(var _this) native;
-
-  void set link(String value) { _set_link(this, value); }
-  static void _set_link(var _this, String value) native;
-
-  String get text() { return _get_text(this); }
-  static String _get_text(var _this) native;
-
-  void set text(String value) { _set_text(this, value); }
-  static void _set_text(var _this, String value) native;
-
-  String get vLink() { return _get_vLink(this); }
-  static String _get_vLink(var _this) native;
-
-  void set vLink(String value) { _set_vLink(this, value); }
-  static void _set_vLink(var _this, String value) native;
-
-  String get typeName() { return "HTMLBodyElement"; }
-}