remove ancient NAND_ECC_HWx_y symbols

Remove some remnants of ancient NAND code that have been
lingering in the DaVinci tree ... so this tree is a closer
match to mainline.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

drivers/mtd/nand/nand_base.c

@@ -2671,13 +2671,6 @@ int nand_scan_tail(struct mtd_info *mtd)
 	 */
 
 	switch (chip->ecc.mode) {
-#ifdef CONFIG_NAND_FLASH_HW_ECC
-	case NAND_ECC_HW12_2048:
-	case NAND_ECC_HW8_512:
-	case NAND_ECC_HW6_512:
-	case NAND_ECC_HW3_512:
-	case NAND_ECC_HW3_256:
-#endif
 	case NAND_ECC_HW:
 		/* Use standard hwecc read page function ? */
 		if (!chip->ecc.read_page)

include/linux/mtd/nand.h

@@ -121,13 +121,6 @@ typedef enum {
 	NAND_ECC_SOFT,
 	NAND_ECC_HW,
 	NAND_ECC_HW_SYNDROME,
-#ifdef CONFIG_NAND_FLASH_HW_ECC
-	NAND_ECC_HW3_256,
-	NAND_ECC_HW3_512,
-	NAND_ECC_HW6_512,
-	NAND_ECC_HW8_512,
-	NAND_ECC_HW12_2048,
-#endif
 } nand_ecc_modes_t;
 
 /*