Fixed #3979 Mailbox users unable to save autoresponders

Till Brehm

2016-07-24 b9a3ef486ebcde18a5ade37865ff8f397185d24f

 server/plugins-available/software_update_plugin.inc.php

@@ -267,7 +267,6 @@
            $app->log('Unable to create database user'.$db_config['database_user'].' '.mysqli_error($link), LOGLEVEL_ERROR);
         }

         mysqli_query($link, "FLUSH PRIVILEGES;");
         mysqli_close($link);

      }