diff --git a/var/Typecho/Storage/Adapter.php b/var/Typecho/Storage/Adapter.php
deleted file mode 100644
index 04a397da..00000000
--- a/var/Typecho/Storage/Adapter.php
+++ /dev/null
@@ -1,26 +0,0 @@
-<?php
-
-/**
- * Typecho_Storage_Adapter 
- * 
- * @copyright Copyright (c) 2012 Typecho Team. (http://typecho.org)
- * @author Joyqi <magike.net@gmail.com> 
- * @license GNU General Public License 2.0
- */
-interface Typecho_Storage_Adapter
-{
-    public static function isAvailable();
-
-    public static function check(array $config);
-
-    public static function config(Typecho_Widget_Helper_Form $form);
-
-    public function get($path);
-
-    public function add($localPath);
-
-    public function set($path, $localPath);
-
-    public function delete($path);
-}
-
diff --git a/var/Typecho/Storage/Adapter/ACE.php b/var/Typecho/Storage/Adapter/ACE.php
deleted file mode 100644
index e69de29b..00000000
diff --git a/var/Typecho/Storage/Adapter/BAE.php b/var/Typecho/Storage/Adapter/BAE.php
deleted file mode 100644
index e69de29b..00000000
diff --git a/var/Typecho/Storage/Adapter/File.php b/var/Typecho/Storage/Adapter/File.php
deleted file mode 100644
index e69de29b..00000000
diff --git a/var/Typecho/Storage/Adapter/GAE.php b/var/Typecho/Storage/Adapter/GAE.php
deleted file mode 100644
index e69de29b..00000000
diff --git a/var/Typecho/Storage/Adapter/SAE.php b/var/Typecho/Storage/Adapter/SAE.php
deleted file mode 100644
index e69de29b..00000000
diff --git a/var/Typecho/Storage/Exception.php b/var/Typecho/Storage/Exception.php
deleted file mode 100644
index e69de29b..00000000