Remove Sponsor Us/Partner With Us page (#218)

This page has been out of date for a long time. We'll revamp our
sponsorship approach soon, and in the meantime, I'm removing anything
we're not currently using.

app/controllers/site_controller.rb

@@ -5,8 +5,6 @@ def home; end
 
   def join_us; end
 
-  def sponsor_us; end
-
   def meetups; end
 
   def jobs; end

app/javascript/components/layout/Footer.jsx

@@ -5,7 +5,7 @@ import Twitter from 'components/icons/Twitter';
 
 import 'stylesheets/footer.scss';
 
-const Footer = () => (
+const Footer = () =>
     <footer>
         <div className="footer">
             <div className="footer-left">
@@ -14,8 +14,8 @@ const Footer = () => (
                     <a className="footer-col-item" href="/join-us">
                         Join WNB.rb
                     </a>
-                    <a className="footer-col-item" href="/partner-with-us">
-                        Partner with Us
+                    <a className="footer-col-item" href="mailto:organizers@wnb-rb.dev">
+                        Contact the Organizers
                     </a>
                     <a className="footer-col-item" href="/donate">
                         Donate
@@ -85,6 +85,6 @@ const Footer = () => (
             </div>
         </div>
     </footer>
-);
+;
 
 export default Footer;

app/javascript/components/layout/Header.jsx

@@ -7,8 +7,7 @@ import 'stylesheets/header.scss';
 
 const Header = () => {
     const links = [
-        { id: 2, text: 'Meetups', href: '/meetups' },
-        { id: 3, text: 'Partner with Us', href: '/partner-with-us' },
+        { id: 1, text: 'Meetups', href: '/meetups' },
     ];
 
     const [headerState, setHeaderState] = useState({