WooCommerce - Make checkout fields optional

<?php
  // WooCommerce - Make checkout fields optional
  // Don't make them all optional :)
  add_filter( 'woocommerce_billing_fields', 'wc_optional_billing_fields', 10, 1 );
  function wc_optional_billing_fields( $address_fields ) {
    $address_fields['billing_first_name']['required'] = false;
    $address_fields['billing_last_name']['required'] = false;
    $address_fields['billing_company']['required'] = false;
    $address_fields['billing_address_1']['required'] = false;
    $address_fields['billing_address_2']['required'] = false;
    $address_fields['billing_city']['required'] = false;
    $address_fields['billing_postcode']['required'] = false;
    $address_fields['billing_country']['required'] = false;
    $address_fields['billing_state']['required'] = false;
    $address_fields['billing_phone']['required'] = false;
    $address_fields['billing_email']['required'] = false;
    return $address_fields;
  }
  add_filter( 'woocommerce_shipping_fields', 'wc_optional_shipping_fields', 10, 1 );
  function wc_optional_shipping_fields( $address_fields ) {
    $address_fields['shipping_first_name']['required'] = false;
    $address_fields['shipping_last_name']['required'] = false;
    $address_fields['shipping_company']['required'] = false;
    $address_fields['shipping_address_1']['required'] = false;
    $address_fields['shipping_address_2']['required'] = false;
    $address_fields['shipping_city']['required'] = false;
    $address_fields['shipping_postcode']['required'] = false;
    $address_fields['shipping_country']['required'] = false;
    $address_fields['shipping_state']['required'] = false;
    $address_fields['shipping_phone']['required'] = false;
    $address_fields['shipping_email']['required'] = false;
    return $address_fields;
  }