Staging: hv: Cleanup calls to cleanup in storvsc_drv.c

cleanup() is an empty function; get rid of calls to this.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/hv/storvsc_drv.c

@@ -833,7 +833,6 @@ static int storvsc_drv_exit_cb(struct device *dev, void *data)
 
 static void storvsc_drv_exit(void)
 {
-	struct storvsc_driver *storvsc_drv_obj = &storvsc_drv;
 	struct hv_driver *drv = &storvsc_drv.base;
 	struct device *current_dev = NULL;
 	int ret;
@@ -854,9 +853,6 @@ static void storvsc_drv_exit(void)
 		device_unregister(current_dev);
 	}
 
-	if (storvsc_drv_obj->base.cleanup)
-		storvsc_drv_obj->base.cleanup(&storvsc_drv_obj->base);
-
 	vmbus_child_driver_unregister(&drv->driver);
 	return;
 }