Hide the Gift Aid Warning when the country is not the UK and the currency is not Pounds

givewp_hide_gift_aid_warnings.php

<?php
function givewp_hide_gift_aid_warnings($notice_args) {
	if( $notice_args['id'] == 'gift-aid-currency-notice' || $notice_args['id'] == 'gift-aid-country-notice' ) {
		$notice_args['show'] = false;
	}
	return $notice_args;
}

add_filter( 'give_register_notice_args', 'givewp_hide_gift_aid_warnings' );