Removed old directory structure

src/interface/static/admin/js/cancel.js

@@ -1,13 +0,0 @@
-(function($) {
-    'use strict';
-    $(function() {
-        $('.cancel-link').on('click', function(e) {
-            e.preventDefault();
-            if (window.location.search.indexOf('&_popup=1') === -1) {
-                window.history.back(); // Go back if not a popup.
-            } else {
-                window.close(); // Otherwise, close the popup.
-            }
-        });
-    });
-})(django.jQuery);