Remove explicit interface versions of dartdoc files.

lib/html/doc/interface/XPathEvaluator.dartdoc

Index: lib/html/doc/interface/XPathEvaluator.dartdoc
diff --git a/lib/html/doc/interface/XPathEvaluator.dartdoc b/lib/html/doc/interface/XPathEvaluator.dartdoc
deleted file mode 100644
index 0b3a48a20aefc81d2b705ffd2012e3055331573e..0000000000000000000000000000000000000000
--- a/lib/html/doc/interface/XPathEvaluator.dartdoc
+++ /dev/null
@@ -1,22 +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 XPathEvaluator
-interface XPathEvaluator default _XPathEvaluatorFactoryProvider {
-
-  XPathEvaluator();
-
-  /** @domName XPathEvaluator.createExpression */
-  XPathExpression createExpression(String expression, XPathNSResolver resolver);
-
-  /** @domName XPathEvaluator.createNSResolver */
-  XPathNSResolver createNSResolver(Node nodeResolver);
-
-  /** @domName XPathEvaluator.evaluate */
-  XPathResult evaluate(String expression, Node contextNode, XPathNSResolver resolver, int type, XPathResult inResult);
-}