LocalFileSystem::deleteFileSystem() is no longer used.

content/child/fileapi/file_system_dispatcher.cc

Index: content/child/fileapi/file_system_dispatcher.cc
diff --git a/content/child/fileapi/file_system_dispatcher.cc b/content/child/fileapi/file_system_dispatcher.cc
index eea378f514b9ba849f66f5366ddd67dd4ee12f5d..43a6732dbece7c94ff42d049e7e1325b33e22612 100644
--- a/content/child/fileapi/file_system_dispatcher.cc
+++ b/content/child/fileapi/file_system_dispatcher.cc
@@ -195,14 +195,6 @@ void FileSystemDispatcher::ResolveURL(
           request_id, filesystem_url));
 }
 
-void FileSystemDispatcher::DeleteFileSystem(const GURL& origin_url,
-                                            storage::FileSystemType type,
-                                            const StatusCallback& callback) {
-  int request_id = dispatchers_.Add(CallbackDispatcher::Create(callback));
-  ChildThreadImpl::current()->Send(new FileSystemHostMsg_DeleteFileSystem(
-          request_id, origin_url, type));
-}
-
 void FileSystemDispatcher::Move(
     const GURL& src_path,
     const GURL& dest_path,