Hide custom GeoJson settings when they are set by the env var (#19621)

frontend/src/metabase/admin/settings/components/widgets/CustomGeoJSONWidget.jsx

@@ -138,6 +138,10 @@ export default class CustomGeoJSONWidget extends Component {
   render() {
     const { setting } = this.props;
 
+    if (!setting.value || setting.is_env_setting) {
+      return null;
+    }
+
     return (
       <div className="flex-full">
         <div className="flex justify-between">