Removing Checkout Billing Field Labels

add_filter('woocommerce_checkout_fields', 'custom_wc_checkout_fields_no_label');

  function custom_wc_checkout_fields_no_label($fields) {
  foreach ($fields as $category => $value) {
  foreach ($fields[$category] as $field => $property) {
  unset($fields[$category][$field]['label']);
  }
  }
  return $fields;
  }