Remove explicit interface versions of dartdoc files.

lib/html/doc/interface/SVGNumberList.dartdoc

Index: lib/html/doc/interface/SVGNumberList.dartdoc
diff --git a/lib/html/doc/interface/SVGNumberList.dartdoc b/lib/html/doc/interface/SVGNumberList.dartdoc
deleted file mode 100644
index 02791831828aaf633a471aa509aea6a465752517..0000000000000000000000000000000000000000
--- a/lib/html/doc/interface/SVGNumberList.dartdoc
+++ /dev/null
@@ -1,35 +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 SVGNumberList
-interface SVGNumberList {
-
-  /** @domName SVGNumberList.numberOfItems */
-  final int numberOfItems;
-
-  /** @domName SVGNumberList.appendItem */
-  SVGNumber appendItem(SVGNumber item);
-
-  /** @domName SVGNumberList.clear */
-  void clear();
-
-  /** @domName SVGNumberList.getItem */
-  SVGNumber getItem(int index);
-
-  /** @domName SVGNumberList.initialize */
-  SVGNumber initialize(SVGNumber item);
-
-  /** @domName SVGNumberList.insertItemBefore */
-  SVGNumber insertItemBefore(SVGNumber item, int index);
-
-  /** @domName SVGNumberList.removeItem */
-  SVGNumber removeItem(int index);
-
-  /** @domName SVGNumberList.replaceItem */
-  SVGNumber replaceItem(SVGNumber item, int index);
-}