Remove unused view

// FREEBIE

background.html

@@ -336,7 +336,6 @@
   <script type='text/javascript' src='js/views/conversation_list_item_view.js'></script>
   <script type='text/javascript' src='js/views/conversation_list_view.js'></script>
   <script type='text/javascript' src='js/views/contact_list_view.js'></script>
-  <script type='text/javascript' src='js/views/recipients_input_view.js'></script>
   <script type='text/javascript' src='js/views/new_group_update_view.js'></script>
   <script type='text/javascript' src='js/views/attachment_view.js'></script>
   <script type='text/javascript' src='js/views/key_conflict_dialogue_view.js'></script>