Hide Payment Icons When Free

function sumobi_edd_hide_payment_icons() {

	$cart_total = edd_get_cart_total();

	if ( $cart_total )

		return;

	remove_action( 'edd_payment_mode_top', 'edd_show_payment_icons' );

	remove_action( 'edd_checkout_form_top', 'edd_show_payment_icons' );

}

add_action( 'template_redirect', 'sumobi_edd_hide_payment_icons' );