Remove explicit interface versions of dartdoc files.

lib/html/doc/nodoc-src/_Elements.dart

Index: lib/html/doc/nodoc-src/_Elements.dart
diff --git a/lib/html/doc/nodoc-src/_Elements.dart b/lib/html/doc/nodoc-src/_Elements.dart
deleted file mode 100644
index 94511c3a5a9a844012463bd67e903582f2e648a6..0000000000000000000000000000000000000000
--- a/lib/html/doc/nodoc-src/_Elements.dart
+++ /dev/null
@@ -1,60 +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.
-
-class _Elements {
-  factory AnchorElement([String href]) => null;
-  factory AreaElement() => null;
-  factory BRElement() => null;
-  factory BaseElement() => null;
-  factory BodyElement() => null;
-  factory ButtonElement() => null;
-  factory CanvasElement([int height, int width]) => null;
-  factory DListElement() => null;
-  factory DetailsElement() => null;
-  factory DivElement() => null;
-  factory EmbedElement() => null;
-  factory FieldSetElement() => null;
-  factory HRElement() => null;
-  factory HeadElement() => null;
-  factory HeadingElement.h1() => null;
-  factory HeadingElement.h2() => null;
-  factory HeadingElement.h3() => null;
-  factory HeadingElement.h4() => null;
-  factory HeadingElement.h5() => null;
-  factory HeadingElement.h6() => null;
-  factory HtmlElement() => null;
-  factory IFrameElement() => null;
-  factory ImageElement([String src, int height, int width]) => null;
-  factory InputElement([String type]) => null;
-  factory KeygenElement() => null;
-  factory LIElement() => null;
-  factory LabelElement() => null;
-  factory LegendElement() => null;
-  factory LinkElement() => null;
-  factory MapElement() => null;
-  factory MenuElement() => null;
-  factory MeterElement() => null;
-  factory OListElement() => null;
-  factory ObjectElement() => null;
-  factory OptGroupElement() => null;
-  factory OutputElement() => null;
-  factory ParagraphElement() => null;
-  factory ParamElement() => null;
-  factory PreElement() => null;
-  factory ProgressElement() => null;
-  factory ScriptElement() => null;
-  factory SourceElement() => null;
-  factory SpanElement() => null;
-  factory StyleElement() => null;
-  factory TableCaptionElement() => null;
-  factory TableCellElement() => null;
-  factory TableColElement() => null;
-  factory TableElement() => null;
-  factory TableRowElement() => null;
-  factory TextAreaElement() => null;
-  factory TitleElement() => null;
-  factory TrackElement() => null;
-  factory UListElement() => null;
-  factory VideoElement() => null;
-}