Remove comments after NewGroupUpdateView investigation

It doesn't run today - it depends on RecipientsInputView, which depends
on Backbone.TypeaheadCollection which doesn't currently exist in the
product.

FREEBIE

js/views/contact_list_view.js

@@ -5,7 +5,6 @@
     'use strict';
     window.Whisper = window.Whisper || {};
 
-    // Contact list view is used in the list group members senario, as well as the NewGroupUpdate view
     Whisper.ContactListView = Whisper.ListView.extend({
         tagName: 'div',
         itemView: Whisper.View.extend({

js/views/new_group_update_view.js

@@ -5,7 +5,6 @@
     'use strict';
     window.Whisper = window.Whisper || {};
 
-    // When is this used?
     Whisper.NewGroupUpdateView = Whisper.View.extend({
         tagName:   "div",
         className: 'new-group-update',