Remove product alpha sorted combo box--in product listing page

include->modules->product_listing_alpha_sorter.php

command the following lines28-32
like
//if (TEXT_PRODUCTS_LISTING_ALPHA_SORTER != '') {
//echo '' . TEXT_PRODUCTS_LISTING_ALPHA_SORTER . '' . zen_draw_pull_down_menu('alpha_filter_id', $letters_list, (isset($_GET['alpha_filter_id']) ? $_GET['alpha_filter_id'] : ''), 'onchange="this.form.submit()"');
// } else {
//echo zen_draw_pull_down_menu('alpha_filter_id', $letters_list, (isset($_GET['alpha_filter_id']) ? $_GET['alpha_filter_id'] : ''), 'onchange="this.form.submit()"');
// }