Disible Tab Product safety

<?php

add_filter( 'woocommerce_product_tabs', 'tzn_custom_woocommerce_product_tabs', 98 );
function tzn_custom_woocommerce_product_tabs( $tabs ) {
    global $product;
    if ( class_exists('WooCommerce_Germanized') && !wc_gzd_get_product( $product )->has_product_safety_information() ){
        unset($tabs['product_safety']);
    }
	return $tabs;
}
?>