Remove generated directories with 100s of files.

client/dom/generated/src/wrapping/_BeforeLoadEventWrappingImplementation.dart

Index: client/dom/generated/src/wrapping/_BeforeLoadEventWrappingImplementation.dart
diff --git a/client/dom/generated/src/wrapping/_BeforeLoadEventWrappingImplementation.dart b/client/dom/generated/src/wrapping/_BeforeLoadEventWrappingImplementation.dart
deleted file mode 100644
index 836fc7c470d5cc3a7aca399235434437465656fa..0000000000000000000000000000000000000000
--- a/client/dom/generated/src/wrapping/_BeforeLoadEventWrappingImplementation.dart
+++ /dev/null
@@ -1,18 +0,0 @@
-// 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 _BeforeLoadEventWrappingImplementation extends _EventWrappingImplementation implements BeforeLoadEvent {
-  _BeforeLoadEventWrappingImplementation() : super() {}
-
-  static create__BeforeLoadEventWrappingImplementation() native {
-    return new _BeforeLoadEventWrappingImplementation();
-  }
-
-  String get url() { return _get_url(this); }
-  static String _get_url(var _this) native;
-
-  String get typeName() { return "BeforeLoadEvent"; }
-}