materio-base-d7/sites/all/modules/contrib/ecommerce/uc_ssl/uc_ssl.install

<?php

/**
 * Implementation of hook_uninstall().
 */
function uc_ssl_uninstall() 
{
   variable_del('uc_ssl_ssl_domain');
   variable_del('uc_ssl_non_ssl_domain');
   variable_del('uc_ssl_status');
   variable_del('uc_ssl_switch_to_non_ssl');
}