staging: unisys: visorbus: removed unused periodic_test_workqueue

periodic_test_workqueue was an unused relic from the past, and was removed.
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Acked-By: Neil Horman <nhorman@tuxdriver.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/visorbus/visorbus_main.c

@@ -116,14 +116,6 @@ struct bus_type visorbus_type = {
 	.bus_groups = visorbus_bus_groups,
 };
 
-static struct delayed_work periodic_work;
-
-/* YES, we need 2 workqueues.
- * The reason is, workitems on the test queue may need to cancel
- * workitems on the other queue.  You will be in for trouble if you try to
- * do this with workitems queued on the same workqueue.
- */
-static struct workqueue_struct *periodic_test_workqueue;
 static struct workqueue_struct *periodic_dev_workqueue;
 static long long bus_count;	/** number of bus instances */
 					/** ever-increasing */
@@ -1309,13 +1301,6 @@ visorbus_exit(void)
 	destroy_workqueue(periodic_dev_workqueue);
 	periodic_dev_workqueue = NULL;
 
-	if (periodic_test_workqueue) {
-		cancel_delayed_work(&periodic_work);
-		flush_workqueue(periodic_test_workqueue);
-		destroy_workqueue(periodic_test_workqueue);
-		periodic_test_workqueue = NULL;
-	}
-
 	list_for_each_safe(listentry, listtmp, &list_all_bus_instances) {
 		struct visor_device *dev = list_entry(listentry,
 						      struct visor_device,