function plt_hide_wpb_woocommerce_related_products_slider_menus() {
//Hide the "Settings → WPB Related Products Slider" menu.
remove_submenu_page('options-general.php', 'wpb_wrps_product_slider');
}
add_action('admin_menu', 'plt_hide_wpb_woocommerce_related_products_slider_menus', 11);