mtd: nand: remove doubled chip deselection on (un)lock

Chip deselection is already done in nand_release_device. So only
duplicate code.
Signed-off-by: NJiri Pinkava <jiri.pinkava@vscht.cz>
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>

drivers/mtd/nand/nand_base.c

@@ -976,9 +976,6 @@ int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 	ret = __nand_unlock(mtd, ofs, len, 0);
 
 out:
-	/* de-select the NAND device */
-	chip->select_chip(mtd, -1);
-
 	nand_release_device(mtd);
 
 	return ret;
@@ -1046,9 +1043,6 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 	ret = __nand_unlock(mtd, ofs, len, 0x1);
 
 out:
-	/* de-select the NAND device */
-	chip->select_chip(mtd, -1);
-
 	nand_release_device(mtd);
 
 	return ret;