Fix error with newer versions of babel

frontend/src/metabase/dashboard/components/RefreshWidget.jsx

@@ -59,5 +59,3 @@ const RefreshOption = ({ name, period, selected, onClick }) =>
         <span className={styles.name}>{ name.split(" ")[0] }</span>
         <span className={styles.nameSuffix}> { name.split(" ")[1] }</span>
     </li>
-
-export default RefreshWidget;

frontend/src/metabase/visualizations/components/settings/ChartSettingInputNumeric.jsx

@@ -39,5 +39,3 @@ export default class ChartSettingInputNumeric extends Component {
         );
     }
 }
-
-export default ChartSettingInputNumeric;