Meniadakan Security Code Pada Form Login

Assalamualaikum,.. buka file : application\controllers\Administrator.php
hapus baris 16 : if ($this->input->post() && (strtolower($this->input->post('security_code')) == strtolower($this->session->userdata('mycaptcha')))) {
dan juga baris 32 sampai 35 :
}else{
    echo $this->session->set_flashdata('message', '<div class="alert alert-danger"><center>Security Code salah!</center></div>');
 redirect($this->uri->segment(1).'/index');
}
 
terakhir hapus inputan security code pada form login : 
application\views\administrator\view_login.php
Hapus script pada baris 41 sampai 46 :
<div class="form-group has-feedback">
  <?php echo $image; ?>
</div>
<div class="form-group has-feedback">
  <input type="text" class="form-control" name='security_code' placeholder="Security Code" required>
</div>