Remove generated directories with 100s of files.

client/dom/generated/src/wrapping/_DirectoryEntrySyncWrappingImplementation.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 _DirectoryEntrySyncWrappingImplementation extends _EntrySyncWrappingImplementation implements DirectoryEntrySync {
-  _DirectoryEntrySyncWrappingImplementation() : super() {}
-
-  static create__DirectoryEntrySyncWrappingImplementation() native {
-    return new _DirectoryEntrySyncWrappingImplementation();
-  }
-
-  DirectoryReaderSync createReader() {
-    return _createReader(this);
-  }
-  static DirectoryReaderSync _createReader(receiver) native;
-
-  DirectoryEntrySync getDirectory(String path, Object flags) {
-    return _getDirectory(this, path, flags);
-  }
-  static DirectoryEntrySync _getDirectory(receiver, path, flags) native;
-
-  FileEntrySync getFile(String path, Object flags) {
-    return _getFile(this, path, flags);
-  }
-  static FileEntrySync _getFile(receiver, path, flags) native;
-
-  void removeRecursively() {
-    _removeRecursively(this);
-    return;
-  }
-  static void _removeRecursively(receiver) native;
-
-  String get typeName() { return "DirectoryEntrySync"; }
-}