Address some review comments

components/membership/MembershipInfoForm.jsx

@@ -1,13 +1,9 @@
-"use strict";
-
 import _ from "lodash";
 import request from "axios";
 import React from "react";
 import classSet from "classnames";
 import api from "../api";
 import Loader from "../Loader";
-//import configFactory from "../../config.js";
-//const config = configFactory();
 
 var fieldNameTranslations = {
   address: { fi: "Osoite" },