diff --git a/main/inc/lib/file_store.class.php b/main/inc/lib/file_store.class.php
deleted file mode 100755
index 7b366530ba..0000000000
--- a/main/inc/lib/file_store.class.php
+++ /dev/null
@@ -1,95 +0,0 @@
-<?php
-
-/**
- *
- * @copyright (c) 2012 University of Geneva
- * @license GNU General Public License - http://www.gnu.org/copyleft/gpl.html
- * @author Laurent Opprecht <laurent@opprecht.info>
- */
-class FileStore
-{
-
-    /**
-     *
-     * @param int $c_id
-     * @param string $sub_path 
-
-     * @return FileStore 
-     */
-    static function course($c_id, $sub_path = '') 
-    { 
-        
-        $sys_path = api_get_path(SYS_COURSE_PATH);
-        $course = api_get_course_info_by_id($c_id);
-        $course_path = $course['path'];
-        $path = $sys_path . $course_path . $sub_path;
-        if (!is_dir($path)) {
-            $mode = api_get_permissions_for_new_directories();
-            $success = mkdir($path, $mode, true);
-            if (!$success) {
-                return false;
-            }
-        }
-        return new self($path);
-    }
-
-    protected $root = '';
-
-    public function __construct($root)
-    {
-        $root = ltrim($root, '/');
-        $root .= '/';
-        $this->root = $root;
-    }
-
-    public function root()
-    {
-        return $this->root;
-    }
-
-    function accept($filename)
-    {
-        return (bool) filter_extension($filename);
-    }
-
-    function add($path)
-    {
-        $root = $this->root();
-        $id = $this->new_id();
-
-        $new_path = "$root/$id";
-        $success = @move_uploaded_file($path, $new_path);
-        return $success ? $id : false;
-    }
-    
-    function remove($path){
-        
-        $root = $this->root();
-        $full_path = "$root/$path";
-        if(is_file($full_path)){
-            $result = unlink($full_path);
-            return $result;
-        }
-        return  false;
-    }
-
-    function get($id)
-    {
-        $root = $this->root();
-        $result = "$root/$id";
-        return $result;
-    }
-
-    function new_id()
-    {
-        $root = $this->root();
-        $id = uniqid('');
-        $path = "$root/$id";
-        while (file_exists($path)) {
-            $id = uniqid('');
-            $path = "$root/$id";
-        }
-        return $id;
-    }
-
-}
\ No newline at end of file