Remove explicit interface versions of dartdoc files.

lib/html/doc/interface/SVGTests.dartdoc

Index: lib/html/doc/interface/SVGTests.dartdoc
diff --git a/lib/html/doc/interface/SVGTests.dartdoc b/lib/html/doc/interface/SVGTests.dartdoc
deleted file mode 100644
index 3aeb720ba81672d6800f164ed047879d2c9b1bb5..0000000000000000000000000000000000000000
--- a/lib/html/doc/interface/SVGTests.dartdoc
+++ /dev/null
@@ -1,23 +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 SVGTests
-interface SVGTests {
-
-  /** @domName SVGTests.requiredExtensions */
-  final SVGStringList requiredExtensions;
-
-  /** @domName SVGTests.requiredFeatures */
-  final SVGStringList requiredFeatures;
-
-  /** @domName SVGTests.systemLanguage */
-  final SVGStringList systemLanguage;
-
-  /** @domName SVGTests.hasExtension */
-  bool hasExtension(String extension);
-}