Making Woocommerce checkout fields optional

optionalcheckoutfields.php

<?php
add_filter( 'woocommerce_default_address_fields' , 'custom_override_default_address_fields' );

function custom_override_default_address_fields( $address_fields ) {
     $address_fields['address_1']['required'] = false;
     $address_fields['address_2']['required'] = false;
     $address_fields['postcode']['required'] = false;
     $address_fields['state']['required'] = false;
     $address_fields['city']['required'] = false;
     $address_fields['country']['required'] = false;


     return $address_fields;
}