Remove old JS + Typo

static/index.html

@@ -292,7 +292,7 @@
           <header>
             <hgroup>
               <h1>c3lingo</h1>
-              <p>Comment accéder aux traductions du 26C3</p>
+              <p>Comment accéder aux traductions du 36C3</p>
             </hgroup>
           </header>
 
@@ -323,26 +323,7 @@
 
     <script type="text/javascript" defer>
       (function () {
-        function selectTarget(ev) {
-          if (!ev.target.classList.contains('field')) return;
-          var selection = window.getSelection();
-          var range = document.createRange();
-          range.selectNodeContents(ev.target);
-          selection.removeAllRanges();
-          selection.addRange(range);
-        }
-        function preventDefaultInField(ev) {
-          if (!ev.target.classList.contains('field')) return;
-          ev.preventDefault();
-        }
-        document.body.addEventListener('mousedown', selectTarget);
-        document.body.addEventListener('mouseup', preventDefaultInField);
-        var usernames = document.querySelectorAll('[data-username]');
-        var suggestedUsername = 'mumble' + Math.round(Math.random() * 1000000000);
-        for (let i = 0; i < usernames.length; i += 1) {
-          usernames[i].textContent = suggestedUsername;
-        }
-
+        // In page navigation - for language switching
         document.body.addEventListener('click', function (ev) {
           if (!ev.target.href) return;
           var hash = ev.target.href.split('#')[1];
@@ -351,6 +332,7 @@
           ev.preventDefault();
         });
 
+        // Autodetect language by default
         var lang = 'en';
         if (navigator.language && navigator.language.substr(0, 2) === 'de') lang = 'de';
         else if (navigator.language && navigator.language.substr(0, 2) === 'fr') lang = 'fr';