clean hmr references

frontend/src/index.js

@@ -17,7 +17,3 @@ const render = () => {
 };
 
 render();
-
-// if (module.hot) {
-//   module.hot.accept('./root', render);
-// }

frontend/src/root.js

@@ -1,6 +1,5 @@
 const React = require('react');
 const ReactIntlRedux = require('react-intl-redux');
-// const ReactHotLoader = require('react-hot-loader');
 const ReactRedux = require('react-redux');
 const ReactRouter = require('react-router-dom');
 
@@ -11,10 +10,6 @@ const {
   IntlProvider
 } = ReactIntlRedux;
 
-// const {
-//   AppContainer
-// } = ReactHotLoader;
-
 const {
   Provider
 } = ReactRedux;