Remove dead code

background.html

@@ -525,9 +525,7 @@
   <script type='text/javascript' src='js/views/group_member_list_view.js'></script>
   <script type='text/javascript' src='js/views/recorder_view.js'></script>
   <script type='text/javascript' src='js/views/conversation_view.js'></script>
-  <script type='text/javascript' src='js/views/new_conversation_view.js'></script>
   <script type='text/javascript' src='js/views/conversation_search_view.js'></script>
-  <script type='text/javascript' src='js/views/window_controls_view.js'></script>
   <script type='text/javascript' src='js/views/hint_view.js'></script>
   <script type='text/javascript' src='js/views/inbox_view.js'></script>
   <script type='text/javascript' src='js/views/confirmation_dialog_view.js'></script>