title: Remove "display name" field in woocommerce account details
body: <p>I'd like to remove the field &quot;Display name&quot; in WooCommerce 4.2.0 account details page and other pages.</p>
  <p>I added this to my functions.php to make it not mandatory, but I still see the little red asterisk next to the field.</p>
  <pre><code>add_filter('woocommerce_save_account_details_required_fields', 'wc_save_account_details_required_fields' );
  function wc_save_account_details_required_fields( $required_fields ){
      unset( $required_fields['account_display_name'] );
      return $required_fields;
  }
  </code></pre>