Remove generated directories with 100s of files.

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

Index: client/dom/generated/src/wrapping/_OfflineAudioCompletionEventWrappingImplementation.dart
diff --git a/client/dom/generated/src/wrapping/_OfflineAudioCompletionEventWrappingImplementation.dart b/client/dom/generated/src/wrapping/_OfflineAudioCompletionEventWrappingImplementation.dart
deleted file mode 100644
index b9ef08ee07780b274597d7d3a212ecb7803b5c0c..0000000000000000000000000000000000000000
--- a/client/dom/generated/src/wrapping/_OfflineAudioCompletionEventWrappingImplementation.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 _OfflineAudioCompletionEventWrappingImplementation extends _EventWrappingImplementation implements OfflineAudioCompletionEvent {
-  _OfflineAudioCompletionEventWrappingImplementation() : super() {}
-
-  static create__OfflineAudioCompletionEventWrappingImplementation() native {
-    return new _OfflineAudioCompletionEventWrappingImplementation();
-  }
-
-  AudioBuffer get renderedBuffer() { return _get_renderedBuffer(this); }
-  static AudioBuffer _get_renderedBuffer(var _this) native;
-
-  String get typeName() { return "OfflineAudioCompletionEvent"; }
-}