refactor(index-glamorous): remove Div from Layout

Removed Div and replaced with regular div

re dsmjs#571

src/organisms/layout/index.js

@@ -1,20 +1,19 @@
 import React from 'react';
 import {string, node} from 'prop-types';
-import {Div} from 'glamorous';
 import Header from '../../molecules/header';
 import Footer from '../footer';
 import {fontFamily, fontSize} from '../../styles';
 import layoutStyles from '../../layoutStyles.json';
 
 export default function Layout({sponsor, location, children}) {
   return (
-    <Div css={{fontFamily, fontSize, maxWidth: 1000, margin: '1em auto', backgroundColor: '#fff'}}>
+    <div css={{fontFamily, fontSize, maxWidth: 1000, margin: '1em auto', backgroundColor: '#fff'}}>
       <Header sponsor={sponsor} location={location} />
       <div css={{padding: `0 ${layoutStyles.innerGutterWidth}px`}}>
         {children}
       </div>
       <Footer />
-    </Div>
+    </div>
   );
 }