Remove generated directories with 100s of files.

client/dom/generated/src/wrapping/_WorkerLocationWrappingImplementation.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 _WorkerLocationWrappingImplementation extends DOMWrapperBase implements WorkerLocation {
-  _WorkerLocationWrappingImplementation() : super() {}
-
-  static create__WorkerLocationWrappingImplementation() native {
-    return new _WorkerLocationWrappingImplementation();
-  }
-
-  String get hash() { return _get_hash(this); }
-  static String _get_hash(var _this) native;
-
-  String get host() { return _get_host(this); }
-  static String _get_host(var _this) native;
-
-  String get hostname() { return _get_hostname(this); }
-  static String _get_hostname(var _this) native;
-
-  String get href() { return _get_href(this); }
-  static String _get_href(var _this) native;
-
-  String get pathname() { return _get_pathname(this); }
-  static String _get_pathname(var _this) native;
-
-  String get port() { return _get_port(this); }
-  static String _get_port(var _this) native;
-
-  String get protocol() { return _get_protocol(this); }
-  static String _get_protocol(var _this) native;
-
-  String get search() { return _get_search(this); }
-  static String _get_search(var _this) native;
-
-  String toString() {
-    return _toString(this);
-  }
-  static String _toString(receiver) native;
-
-  String get typeName() { return "WorkerLocation"; }
-}