diff --git a/application/controllers/information.php b/application/controllers/information.php
index 1d6e6907..ae63c41f 100644
--- a/application/controllers/information.php
+++ b/application/controllers/information.php
@@ -708,37 +708,4 @@ class Information extends CI_Controller {
         return true;
     }
 
-    function batch_update()
-    {
-        $this->load->view('bootstrap3/batch_update');
-    }
-
-    function batch_update_fun()
-    {
-        $url_post = $this->input->post();
-        $url_str  = $url_post['url'];
-        $url_str  = str_replace("\r\n", ";", $url_str);
-        $url_str  = str_replace("\n", ";", $url_str);
-        $url_arr  = explode(";", $url_str);
-        $url_arr = array_filter($url_arr);
-        $all_cnt = count($url_arr);
-        $ret['success_url'] = [];$ret['success_cnt'] = 0;
-        $ret['failure_url'] = [];$ret['failure_cnt'] = 0;
-        foreach ($url_arr as $key => $url) {
-            $update_ret = $this->update_cache($url);
-            $update_status = $update_ret[0]["name"];
-            if ($update_status == "ok") {
-                // ok
-                $ret['success_url'][] = $url;
-                $ret['success_cnt']++;
-            } else {
-                // no
-                $ret['failure_url'][] = $url;
-                $ret['failure_cnt']++;
-            }
-        }
-        echo "<script type=\"text/javascript\">parent.tmp('".json_encode($ret)."');</script>";
-        return;
-    }
-
 }