Useless check in users module

[JN-Jones]

        if($this->old_db->num_rows($query) == 0)
        {
            $output->print_none_left_message();
        }

First of all $output isn't defined there and on the other hand the if will never be true as the fetch_total function get's the number of users and we're using a limit on the query which is then checked against the remaining number of users and import is never called when there's no user left.