.woocommerce form #mcdev_cover_processing_fees_optional_fees_field .form-row .optional {
    display: none;
}

.woocommerce form #mcdev_cover_processing_fees_optional_fees_field .form-row .required {
    display: none;
}

.woocommerce form #mcdev_cover_processing_fees_optional_fees_field input[type=radio] {
  margin: 5px;
}