Remove generated directories with 100s of files.

client/dom/generated/src/wrapping/_AudioListenerWrappingImplementation.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 _AudioListenerWrappingImplementation extends DOMWrapperBase implements AudioListener {
-  _AudioListenerWrappingImplementation() : super() {}
-
-  static create__AudioListenerWrappingImplementation() native {
-    return new _AudioListenerWrappingImplementation();
-  }
-
-  num get dopplerFactor() { return _get_dopplerFactor(this); }
-  static num _get_dopplerFactor(var _this) native;
-
-  void set dopplerFactor(num value) { _set_dopplerFactor(this, value); }
-  static void _set_dopplerFactor(var _this, num value) native;
-
-  num get speedOfSound() { return _get_speedOfSound(this); }
-  static num _get_speedOfSound(var _this) native;
-
-  void set speedOfSound(num value) { _set_speedOfSound(this, value); }
-  static void _set_speedOfSound(var _this, num value) native;
-
-  void setOrientation(num x, num y, num z, num xUp, num yUp, num zUp) {
-    _setOrientation(this, x, y, z, xUp, yUp, zUp);
-    return;
-  }
-  static void _setOrientation(receiver, x, y, z, xUp, yUp, zUp) native;
-
-  void setPosition(num x, num y, num z) {
-    _setPosition(this, x, y, z);
-    return;
-  }
-  static void _setPosition(receiver, x, y, z) native;
-
-  void setVelocity(num x, num y, num z) {
-    _setVelocity(this, x, y, z);
-    return;
-  }
-  static void _setVelocity(receiver, x, y, z) native;
-
-  String get typeName() { return "AudioListener"; }
-}