How to remove 'sort by rating' in the sort field?

Code: Select all

$this->data['sorts'][] = array(
	'text'  => $this->language->get('text_rating_desc'),
	'value' => 'rating-DESC',
	'href'  => $this->model_tool_seo_url->rewrite($this->url->http('product/category&path=' . $this->request->get['path'] . '&sort=rating&order=DESC'))
); 

$this->data['sorts'][] = array(
	'text'  => $this->language->get('text_rating_asc'),
	'value' => 'rating-ASC',
	'href'  => $this->model_tool_seo_url->rewrite($this->url->http('product/category&path=' . $this->request->get['path'] . '&sort=rating&order=ASC'))
);