Remove explicit interface versions of dartdoc files.

lib/html/doc/interface/Geolocation.dartdoc

Index: lib/html/doc/interface/Geolocation.dartdoc
diff --git a/lib/html/doc/interface/Geolocation.dartdoc b/lib/html/doc/interface/Geolocation.dartdoc
deleted file mode 100644
index 74d633eda12c2747d7dca7b1ac730423cf646bde..0000000000000000000000000000000000000000
--- a/lib/html/doc/interface/Geolocation.dartdoc
+++ /dev/null
@@ -1,20 +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 Geolocation
-interface Geolocation {
-
-  /** @domName Geolocation.clearWatch */
-  void clearWatch(int watchId);
-
-  /** @domName Geolocation.getCurrentPosition */
-  void getCurrentPosition(PositionCallback successCallback, [PositionErrorCallback errorCallback, Object options]);
-
-  /** @domName Geolocation.watchPosition */
-  int watchPosition(PositionCallback successCallback, [PositionErrorCallback errorCallback, Object options]);
-}