Remove obsolete polymer-ready event listener

src/gui/html/index.html

@@ -459,4 +459,8 @@
   <script src="js/query.js"></script>
   <script src="js/translator.js"></script>
   <script src="js/init.js"></script>
+  <script>
+    'use strict';
+    loot.initialise();
+  </script>
 </body>

src/gui/html/js/init.js

@@ -279,5 +279,3 @@
     }).catch(handlePromiseError);
   };
 }));
-
-window.addEventListener('polymer-ready', loot.initialise);