Fix warnings relating to unused values (#196)

interface/src/system/OTASettingsForm.tsx

@@ -18,7 +18,7 @@ class OTASettingsForm extends React.Component<OTASettingsFormProps> {
   }
 
   render() {
-    const { data, handleValueChange, saveData, loadData } = this.props;
+    const { data, handleValueChange, saveData } = this.props;
     return (
       <ValidatorForm onSubmit={saveData}>
         <BlockFormControlLabel