Remove explicit interface versions of dartdoc files.

lib/html/doc/interface/SVGAngle.dartdoc

Index: lib/html/doc/interface/SVGAngle.dartdoc
diff --git a/lib/html/doc/interface/SVGAngle.dartdoc b/lib/html/doc/interface/SVGAngle.dartdoc
deleted file mode 100644
index dd7d0f92f2f86564e8e1b230425dd93c5565adbf..0000000000000000000000000000000000000000
--- a/lib/html/doc/interface/SVGAngle.dartdoc
+++ /dev/null
@@ -1,39 +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 SVGAngle
-interface SVGAngle {
-
-  static final int SVG_ANGLETYPE_DEG = 2;
-
-  static final int SVG_ANGLETYPE_GRAD = 4;
-
-  static final int SVG_ANGLETYPE_RAD = 3;
-
-  static final int SVG_ANGLETYPE_UNKNOWN = 0;
-
-  static final int SVG_ANGLETYPE_UNSPECIFIED = 1;
-
-  /** @domName SVGAngle.unitType */
-  final int unitType;
-
-  /** @domName SVGAngle.value */
-  num value;
-
-  /** @domName SVGAngle.valueAsString */
-  String valueAsString;
-
-  /** @domName SVGAngle.valueInSpecifiedUnits */
-  num valueInSpecifiedUnits;
-
-  /** @domName SVGAngle.convertToSpecifiedUnits */
-  void convertToSpecifiedUnits(int unitType);
-
-  /** @domName SVGAngle.newValueSpecifiedUnits */
-  void newValueSpecifiedUnits(int unitType, num valueInSpecifiedUnits);
-}