Remove explicit interface versions of dartdoc files.

lib/html/doc/interface/AudioNode.dartdoc

Index: lib/html/doc/interface/AudioNode.dartdoc
diff --git a/lib/html/doc/interface/AudioNode.dartdoc b/lib/html/doc/interface/AudioNode.dartdoc
deleted file mode 100644
index 9f62d5960490a27f492db4c1449bce73aef8f0fa..0000000000000000000000000000000000000000
--- a/lib/html/doc/interface/AudioNode.dartdoc
+++ /dev/null
@@ -1,26 +0,0 @@
-// 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.
-
-// WARNING:
-//   This file contains documentation that is merged into the real source.
-//   Do not make code changes here.
-
-/// @domName AudioNode
-interface AudioNode {
-
-  /** @domName AudioNode.context */
-  final AudioContext context;
-
-  /** @domName AudioNode.numberOfInputs */
-  final int numberOfInputs;
-
-  /** @domName AudioNode.numberOfOutputs */
-  final int numberOfOutputs;
-
-  /** @domName AudioNode.connect */
-  void connect(destination, int output, [int input]);
-
-  /** @domName AudioNode.disconnect */
-  void disconnect(int output);
-}