Remove explicit interface versions of dartdoc files.

lib/html/doc/interface/SVGFESpecularLightingElement.dartdoc

Index: lib/html/doc/interface/SVGFESpecularLightingElement.dartdoc
diff --git a/lib/html/doc/interface/SVGFESpecularLightingElement.dartdoc b/lib/html/doc/interface/SVGFESpecularLightingElement.dartdoc
deleted file mode 100644
index d8073400e537ab911e76748d89c48ad765d620ac..0000000000000000000000000000000000000000
--- a/lib/html/doc/interface/SVGFESpecularLightingElement.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 SVGFESpecularLightingElement
-interface SVGFESpecularLightingElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-
-  /** @domName SVGFESpecularLightingElement.in1 */
-  final SVGAnimatedString in1;
-
-  /** @domName SVGFESpecularLightingElement.specularConstant */
-  final SVGAnimatedNumber specularConstant;
-
-  /** @domName SVGFESpecularLightingElement.specularExponent */
-  final SVGAnimatedNumber specularExponent;
-
-  /** @domName SVGFESpecularLightingElement.surfaceScale */
-  final SVGAnimatedNumber surfaceScale;
-}