Remove generated directories with 100s of files.

client/dom/generated/src/wrapping/_AudioNodeWrappingImplementation.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 _AudioNodeWrappingImplementation extends DOMWrapperBase implements AudioNode {
-  _AudioNodeWrappingImplementation() : super() {}
-
-  static create__AudioNodeWrappingImplementation() native {
-    return new _AudioNodeWrappingImplementation();
-  }
-
-  AudioContext get context() { return _get_context(this); }
-  static AudioContext _get_context(var _this) native;
-
-  int get numberOfInputs() { return _get_numberOfInputs(this); }
-  static int _get_numberOfInputs(var _this) native;
-
-  int get numberOfOutputs() { return _get_numberOfOutputs(this); }
-  static int _get_numberOfOutputs(var _this) native;
-
-  void connect(AudioNode destination, int output, int input) {
-    _connect(this, destination, output, input);
-    return;
-  }
-  static void _connect(receiver, destination, output, input) native;
-
-  void disconnect(int output) {
-    _disconnect(this, output);
-    return;
-  }
-  static void _disconnect(receiver, output) native;
-
-  String get typeName() { return "AudioNode"; }
-}