Remove generated directories with 100s of files.

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

Index: client/dom/generated/src/wrapping/_IDBVersionChangeEventWrappingImplementation.dart
diff --git a/client/dom/generated/src/wrapping/_IDBVersionChangeEventWrappingImplementation.dart b/client/dom/generated/src/wrapping/_IDBVersionChangeEventWrappingImplementation.dart
deleted file mode 100644
index 8e31e9094a339188256618956e7f43f483346f5f..0000000000000000000000000000000000000000
--- a/client/dom/generated/src/wrapping/_IDBVersionChangeEventWrappingImplementation.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 _IDBVersionChangeEventWrappingImplementation extends _EventWrappingImplementation implements IDBVersionChangeEvent {
-  _IDBVersionChangeEventWrappingImplementation() : super() {}
-
-  static create__IDBVersionChangeEventWrappingImplementation() native {
-    return new _IDBVersionChangeEventWrappingImplementation();
-  }
-
-  String get version() { return _get_version(this); }
-  static String _get_version(var _this) native;
-
-  String get typeName() { return "IDBVersionChangeEvent"; }
-}