Remove explicit interface versions of dartdoc files.

lib/html/doc/interface/SVGFEDisplacementMapElement.dartdoc

Index: lib/html/doc/interface/SVGFEDisplacementMapElement.dartdoc
diff --git a/lib/html/doc/interface/SVGFEDisplacementMapElement.dartdoc b/lib/html/doc/interface/SVGFEDisplacementMapElement.dartdoc
deleted file mode 100644
index 02e18069e397cd9e6dd0f4ed49b7f022ba761f9b..0000000000000000000000000000000000000000
--- a/lib/html/doc/interface/SVGFEDisplacementMapElement.dartdoc
+++ /dev/null
@@ -1,36 +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 SVGFEDisplacementMapElement
-interface SVGFEDisplacementMapElement extends SVGElement, SVGFilterPrimitiveStandardAttributes {
-
-  static final int SVG_CHANNEL_A = 4;
-
-  static final int SVG_CHANNEL_B = 3;
-
-  static final int SVG_CHANNEL_G = 2;
-
-  static final int SVG_CHANNEL_R = 1;
-
-  static final int SVG_CHANNEL_UNKNOWN = 0;
-
-  /** @domName SVGFEDisplacementMapElement.in1 */
-  final SVGAnimatedString in1;
-
-  /** @domName SVGFEDisplacementMapElement.in2 */
-  final SVGAnimatedString in2;
-
-  /** @domName SVGFEDisplacementMapElement.scale */
-  final SVGAnimatedNumber scale;
-
-  /** @domName SVGFEDisplacementMapElement.xChannelSelector */
-  final SVGAnimatedEnumeration xChannelSelector;
-
-  /** @domName SVGFEDisplacementMapElement.yChannelSelector */
-  final SVGAnimatedEnumeration yChannelSelector;
-}