Unrequire billing address block field for US in GiveWP visual builder forms

unrequire_billing_block_fields.php

<?php

add_filter('give_get_country_locale', 'give_custom_requirements');
function give_custom_requirements() {
    $countries = array(
        'US' => [
				'state' => [
					'required' => false,
				],
				'address1' => [
						'required' => false,
					],
				'city' => [
						'required' => false,
					],
				'zip' => [
						'required' => false,
					],
				]
    );
    
	return $countries;
}
function more_countries_without_postcodes( $countries ) {
	$newcountries = [
		'US' => esc_html__( 'United States', 'give' ),
		];
	array_push( $countries, $newcountries );
	return $countries;
}

add_filter( 'give_countries_without_postcodes', 'more_countries_without_postcodes');
add_filter( 'give_city_not_required_country_list', 'more_countries_without_postcodes');
add_filter( 'give_states_not_required_country_list', 'more_countries_without_postcodes');


add_action('givewp_donation_form_schema', function($form) {
    /** @var \Give\Framework\FieldsAPI\Amount $field */
    $country = $form->getNodeByName('country');
    // if the country is not found, return
    if (!$country) {
        return;
    }
	$address1 = $form->getNodeByName('address1');
	$city = $form->getNodeByName('city');
	$state = $form->getNodeByName('state');
	$postalCode = $form->getNodeByName('zip');

    // unrequire fields
    $country->required(false);
	$address1->required(false);
	$city->required(false);
	$state->required(false);
	$postalCode->required(false);
	
	$city->rules('optional');
	$state->rules('optional');
	$postalCode->rules('optional');
	
	
	//$field->defaultValue($defaultAmount);
   
});