Remove generated directories with 100s of files.

client/dom/generated/src/wrapping/_DeviceOrientationEventWrappingImplementation.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 _DeviceOrientationEventWrappingImplementation extends _EventWrappingImplementation implements DeviceOrientationEvent {
-  _DeviceOrientationEventWrappingImplementation() : super() {}
-
-  static create__DeviceOrientationEventWrappingImplementation() native {
-    return new _DeviceOrientationEventWrappingImplementation();
-  }
-
-  bool get absolute() { return _get_absolute(this); }
-  static bool _get_absolute(var _this) native;
-
-  num get alpha() { return _get_alpha(this); }
-  static num _get_alpha(var _this) native;
-
-  num get beta() { return _get_beta(this); }
-  static num _get_beta(var _this) native;
-
-  num get gamma() { return _get_gamma(this); }
-  static num _get_gamma(var _this) native;
-
-  void initDeviceOrientationEvent(String type, bool bubbles, bool cancelable, num alpha, num beta, num gamma, bool absolute) {
-    _initDeviceOrientationEvent(this, type, bubbles, cancelable, alpha, beta, gamma, absolute);
-    return;
-  }
-  static void _initDeviceOrientationEvent(receiver, type, bubbles, cancelable, alpha, beta, gamma, absolute) native;
-
-  String get typeName() { return "DeviceOrientationEvent"; }
-}