Remove last 'extra_snippet'

client/dom/snippets/html/HTMLDocument.dart.snippet

Index: client/dom/snippets/html/HTMLDocument.dart.snippet
diff --git a/client/dom/snippets/html/HTMLDocument.dart.snippet b/client/dom/snippets/html/HTMLDocument.dart.snippet
deleted file mode 100644
index 91ade8af2d0367a8bbf55421de1877dc072a984c..0000000000000000000000000000000000000000
--- a/client/dom/snippets/html/HTMLDocument.dart.snippet
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011, 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.
-
-/**
- * Contains the set of standard values returned by HTMLDocument.getReadyState.
- */
-interface ReadyState {
-  /**
-   * Indicates the document is still loading and parsing.
-   */
-  static final String LOADING = "loading";
-
-  /**
-   * Indicates the document is finished parsing but is still loading
-   * subresources.
-   */
-  static final String INTERACTIVE = "interactive";
-
-  /**
-   * Indicates the document and all subresources have been loaded.
-   */
-  static final String COMPLETE = "complete";
-}