Remove generated directories with 100s of files.

client/html/generated/html/interface/DirectoryEntry.dart

Index: client/html/generated/html/interface/DirectoryEntry.dart
diff --git a/client/html/generated/html/interface/DirectoryEntry.dart b/client/html/generated/html/interface/DirectoryEntry.dart
deleted file mode 100644
index e2812a0c2e07f8402486574e6e1b202f9aa782fc..0000000000000000000000000000000000000000
--- a/client/html/generated/html/interface/DirectoryEntry.dart
+++ /dev/null
@@ -1,16 +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: Do not edit - generated code.
-
-interface DirectoryEntry extends Entry {
-
-  DirectoryReader createReader();
-
-  void getDirectory(String path, [Object flags, EntryCallback successCallback, ErrorCallback errorCallback]);
-
-  void getFile(String path, [Object flags, EntryCallback successCallback, ErrorCallback errorCallback]);
-
-  void removeRecursively(VoidCallback successCallback, [ErrorCallback errorCallback]);
-}