Cleaned up dead code.

Author: garryyao

mvc/controller/widget.js

@@ -48,9 +48,6 @@ define([
 				.then(function (results) {
 					// Reject if this promise is not the current pending task.
 					if (taskNo == currTaskNo) {
-						// Get old cache
-						var cache = me[CACHE];
-
 						// Calculate updates
 						var updates = {};
 						var updated = Object.keys(results).reduce(function (update, key) {