Remove explicit interface versions of dartdoc files.

lib/html/doc/interface/IDBVersionChangeRequest.dartdoc

Index: lib/html/doc/interface/IDBVersionChangeRequest.dartdoc
diff --git a/lib/html/doc/interface/IDBVersionChangeRequest.dartdoc b/lib/html/doc/interface/IDBVersionChangeRequest.dartdoc
deleted file mode 100644
index df657b9c2df8c34c6df8c5052a44a8361d4638b8..0000000000000000000000000000000000000000
--- a/lib/html/doc/interface/IDBVersionChangeRequest.dartdoc
+++ /dev/null
@@ -1,21 +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 IDBVersionChangeRequest
-interface IDBVersionChangeRequest extends IDBRequest, EventTarget {
-
-  /**
-   * @domName EventTarget.addEventListener, EventTarget.removeEventListener, EventTarget.dispatchEvent
-   */
-  IDBVersionChangeRequestEvents get on();
-}
-
-interface IDBVersionChangeRequestEvents extends IDBRequestEvents {
-
-  EventListenerList get blocked();
-}