staging: unisys: remove comparison

the comparison is always true as the dev_t has been initialized in the
init function and we are sending that initialized dev_t to the
cleanup().

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/visorchipset/file.c

@@ -76,9 +76,7 @@ visorchipset_file_cleanup(dev_t major_dev)
 	if (file_cdev.ops != NULL)
 		cdev_del(&file_cdev);
 	file_cdev.ops = NULL;
-	if (MAJOR(major_dev) >= 0) {
-		unregister_chrdev_region(major_dev, 1);
-	}
+	unregister_chrdev_region(major_dev, 1);
 }
 
 static int