message: nicer way to appease linter
diff: @@ -138,7 +138,7 @@ export default class Field extends React.PureComponent {
  render() {
  const { element, prefix, onValidate, children, tooltip, ...inputProps } = this.props;
  - !tooltip; // needs to be removed from props but we don't need it here, so otherwise unused variable
  + delete inputProps.tooltip; // needs to be removed from props but we don't need it here
  const inputElement = element || "input";
  