Remove generated directories with 100s of files.

client/dom/generated/src/wrapping/_SVGStringListWrappingImplementation.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 _SVGStringListWrappingImplementation extends DOMWrapperBase implements SVGStringList {
-  _SVGStringListWrappingImplementation() : super() {}
-
-  static create__SVGStringListWrappingImplementation() native {
-    return new _SVGStringListWrappingImplementation();
-  }
-
-  int get numberOfItems() { return _get_numberOfItems(this); }
-  static int _get_numberOfItems(var _this) native;
-
-  String appendItem(String item) {
-    return _appendItem(this, item);
-  }
-  static String _appendItem(receiver, item) native;
-
-  void clear() {
-    _clear(this);
-    return;
-  }
-  static void _clear(receiver) native;
-
-  String getItem(int index) {
-    return _getItem(this, index);
-  }
-  static String _getItem(receiver, index) native;
-
-  String initialize(String item) {
-    return _initialize(this, item);
-  }
-  static String _initialize(receiver, item) native;
-
-  String insertItemBefore(String item, int index) {
-    return _insertItemBefore(this, item, index);
-  }
-  static String _insertItemBefore(receiver, item, index) native;
-
-  String removeItem(int index) {
-    return _removeItem(this, index);
-  }
-  static String _removeItem(receiver, index) native;
-
-  String replaceItem(String item, int index) {
-    return _replaceItem(this, item, index);
-  }
-  static String _replaceItem(receiver, item, index) native;
-
-  String get typeName() { return "SVGStringList"; }
-}