Fix development set up issue

There was an issue when developing locally where the console would show
this error:

> Error: React-Hot-Loader: AppContainer should be patched

src/components/app.jsx

@@ -1,9 +0,0 @@
-import React from 'react';
-
-import Routes from './routes';
-import '../style.css';
-
-// Main component
-export default () => (
-  <Routes />
-);

src/index.jsx

@@ -1,29 +1,19 @@
 import Raven from 'raven-js';
 import { render } from 'react-dom';
-import { AppContainer } from 'react-hot-loader';
 import { HashRouter } from 'react-router-dom';
-import App from './components/app';
 import Boundary from './components/errorBoundary';
+import Routes from './components/routes';
+import './style.css';
 
 if (process.env.NODE_ENV === 'production') {
   Raven.config('https://60b05bc4ef794a6c9e30e86e6a316083@sentry.io/300397').install();
 }
 
-const root = document.getElementById('root');
-const load = () => render(
-  <AppContainer>
-    <HashRouter>
-      <Boundary>
-        <App />
-      </Boundary>
-    </HashRouter>
-  </AppContainer>,
-  root,
+render(
+  <HashRouter>
+    <Boundary>
+      <Routes />
+    </Boundary>
+  </HashRouter>,
+  document.getElementById('root'),
 );
-
-// This is needed for Hot Module Replacement
-if (module.hot) {
-  module.hot.accept('./components/app', load);
-}
-
-load();