function plt_hide_wp_ultra_simple_paypal_shopping_cart_menus() {
//Hide the "Settings → Ultra simple Cart" menu.
remove_submenu_page('options-general.php', 'wp-ultra-simple-paypal-shopping-cart/wpussc-option.php');
}
add_action('admin_menu', 'plt_hide_wp_ultra_simple_paypal_shopping_cart_menus', 11);