Remove explicit interface versions of dartdoc files.

lib/html/doc/interface/TableCellElement.dartdoc

Index: lib/html/doc/interface/TableCellElement.dartdoc
diff --git a/lib/html/doc/interface/TableCellElement.dartdoc b/lib/html/doc/interface/TableCellElement.dartdoc
deleted file mode 100644
index f7303493f4c6ef02cfc687634f09acad7a7a9eb8..0000000000000000000000000000000000000000
--- a/lib/html/doc/interface/TableCellElement.dartdoc
+++ /dev/null
@@ -1,58 +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 HTMLTableCellElement
-interface TableCellElement extends Element default _Elements {
-
-  TableCellElement();
-
-  /** @domName HTMLTableCellElement.abbr */
-  String abbr;
-
-  /** @domName HTMLTableCellElement.align */
-  String align;
-
-  /** @domName HTMLTableCellElement.axis */
-  String axis;
-
-  /** @domName HTMLTableCellElement.bgColor */
-  String bgColor;
-
-  /** @domName HTMLTableCellElement.cellIndex */
-  final int cellIndex;
-
-  /** @domName HTMLTableCellElement.ch */
-  String ch;
-
-  /** @domName HTMLTableCellElement.chOff */
-  String chOff;
-
-  /** @domName HTMLTableCellElement.colSpan */
-  int colSpan;
-
-  /** @domName HTMLTableCellElement.headers */
-  String headers;
-
-  /** @domName HTMLTableCellElement.height */
-  String height;
-
-  /** @domName HTMLTableCellElement.noWrap */
-  bool noWrap;
-
-  /** @domName HTMLTableCellElement.rowSpan */
-  int rowSpan;
-
-  /** @domName HTMLTableCellElement.scope */
-  String scope;
-
-  /** @domName HTMLTableCellElement.vAlign */
-  String vAlign;
-
-  /** @domName HTMLTableCellElement.width */
-  String width;
-}