[Build] Remove unused variables

...to satisfy JSHint

platform/features/imagery/src/directives/MCTBackgroundImage.js

@@ -36,7 +36,7 @@ define(
          * @memberof platform/features/imagery
          */
         function MCTBackgroundImage($document) {
-            function link(scope, element, attrs) {
+            function link(scope, element) {
                 // General strategy here:
                 // - Keep count of how many images have been requested; this
                 //   counter will be used as an internal identifier or sorts
@@ -49,7 +49,7 @@ define(
                 // in which images are actually loaded may be different, so
                 // some strategy like this is necessary to ensure that images
                 // do not display out-of-order.
-                var div, requested = 0, loaded = 0;
+                var requested = 0, loaded = 0;
 
                 function nextImage(url) {
                     var myCounter = requested,