mtd: maps: rbtx4939-flash: delete unneeded test

Err has only been initialized to 0 at this, so it is not possible that this
test can be true.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

drivers/mtd/maps/rbtx4939-flash.c

@@ -100,8 +100,6 @@ static int rbtx4939_flash_probe(struct platform_device *dev)
 		goto err_out;
 	}
 	info->mtd->owner = THIS_MODULE;
-	if (err)
-		goto err_out;
 	err = mtd_device_parse_register(info->mtd, NULL, NULL, pdata->parts,
 					pdata->nr_parts);