Remove generated directories with 100s of files.

client/dom/generated/src/wrapping/_SVGDocumentWrappingImplementation.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 _SVGDocumentWrappingImplementation extends _DocumentWrappingImplementation implements SVGDocument {
-  _SVGDocumentWrappingImplementation() : super() {}
-
-  static create__SVGDocumentWrappingImplementation() native {
-    return new _SVGDocumentWrappingImplementation();
-  }
-
-  SVGSVGElement get rootElement() { return _get_rootElement(this); }
-  static SVGSVGElement _get_rootElement(var _this) native;
-
-  Event createEvent(String eventType) {
-    return _createEvent_SVGDocument(this, eventType);
-  }
-  static Event _createEvent_SVGDocument(receiver, eventType) native;
-
-  String get typeName() { return "SVGDocument"; }
-}