Remove generated directories with 100s of files.

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

Index: client/dom/generated/src/wrapping/_AudioChannelMergerWrappingImplementation.dart
diff --git a/client/dom/generated/src/wrapping/_AudioChannelMergerWrappingImplementation.dart b/client/dom/generated/src/wrapping/_AudioChannelMergerWrappingImplementation.dart
deleted file mode 100644
index 8d1d3c1411a5878909fd2e5670586d4ff69810cc..0000000000000000000000000000000000000000
--- a/client/dom/generated/src/wrapping/_AudioChannelMergerWrappingImplementation.dart
+++ /dev/null
@@ -1,15 +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 _AudioChannelMergerWrappingImplementation extends _AudioNodeWrappingImplementation implements AudioChannelMerger {
-  _AudioChannelMergerWrappingImplementation() : super() {}
-
-  static create__AudioChannelMergerWrappingImplementation() native {
-    return new _AudioChannelMergerWrappingImplementation();
-  }
-
-  String get typeName() { return "AudioChannelMerger"; }
-}