Remove JCB & Diner’s Club Payment Icons

Hi,

I’m looking for a way to remove the JCB & Diner’s Club Payment icons from the checkout.

I tried adding this snippet to my theme’s functions.php but it did not work.

function rs_removed_icon( $icons ) {
	$icons = str_replace( '<img src="[your absolute url to...]/assets/images/icons/credit-cards/jcb.svg" alt="JCB" width="32" style="margin-left: 0.3em" />', '', $icons );
	$icons = str_replace( '<img src="[your absolute url to...]/assets/images/icons/credit-cards/diners.svg" alt="Diners" width="32" style="margin-left: 0.3em" />', '', $icons );
    return $icons;
}
add_filter( 'woocommerce_gateway_icon', 'rs_removed_icon');