Remove explicit interface versions of dartdoc files.

lib/html/doc/interface/DirectoryEntrySync.dartdoc

Index: lib/html/doc/interface/DirectoryEntrySync.dartdoc
diff --git a/lib/html/doc/interface/DirectoryEntrySync.dartdoc b/lib/html/doc/interface/DirectoryEntrySync.dartdoc
deleted file mode 100644
index f1fdc2c74f67fbfd510331e1db4aee5c93f76df9..0000000000000000000000000000000000000000
--- a/lib/html/doc/interface/DirectoryEntrySync.dartdoc
+++ /dev/null
@@ -1,23 +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 DirectoryEntrySync
-interface DirectoryEntrySync extends EntrySync {
-
-  /** @domName DirectoryEntrySync.createReader */
-  DirectoryReaderSync createReader();
-
-  /** @domName DirectoryEntrySync.getDirectory */
-  DirectoryEntrySync getDirectory(String path, Object flags);
-
-  /** @domName DirectoryEntrySync.getFile */
-  FileEntrySync getFile(String path, Object flags);
-
-  /** @domName DirectoryEntrySync.removeRecursively */
-  void removeRecursively();
-}