Revert "Moving AudioElement back to dart:html"

sdk/lib/svg/dart2js/svg_dart2js.dart

Index: sdk/lib/svg/dart2js/svg_dart2js.dart
diff --git a/sdk/lib/svg/dart2js/svg_dart2js.dart b/sdk/lib/svg/dart2js/svg_dart2js.dart
index 60c8a9e9a0c6aaee9a5ae53b9c708adec838ec42..8a164ef645008a4fd04892728c48e939c5405cc6 100644
--- a/sdk/lib/svg/dart2js/svg_dart2js.dart
+++ b/sdk/lib/svg/dart2js/svg_dart2js.dart
@@ -1257,26 +1257,6 @@ class ElementInstanceEvents extends Events {
 // BSD-style license that can be found in the LICENSE file.
 
 
-/// @domName ElementTimeControl
-abstract class ElementTimeControl {
-
-  /// @domName ElementTimeControl.beginElement; @docsEditable true
-  void beginElement();
-
-  /// @domName ElementTimeControl.beginElementAt; @docsEditable true
-  void beginElementAt(num offset);
-
-  /// @domName ElementTimeControl.endElement; @docsEditable true
-  void endElement();
-
-  /// @domName ElementTimeControl.endElementAt; @docsEditable true
-  void endElementAt(num offset);
-}
-// Copyright (c) 2012, 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.
-
-
 /// @domName SVGEllipseElement; @docsEditable true
 class EllipseElement extends SvgElement implements Transformable, Tests, Stylable, ExternalResourcesRequired, LangSpace native "*SVGEllipseElement" {