mtd: nand: Cleanup flags and fields for bad block marker position

Now that we have moved the information to the chip level, let's
remove all the unused flags and fields.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

include/linux/mtd/bbm.h

@@ -93,10 +93,7 @@ struct nand_bbt_descr {
 #define NAND_BBT_WRITE		0x00002000
 /* Read and write back block contents when writing bbt */
 #define NAND_BBT_SAVECONTENT	0x00004000
-/* Search good / bad pattern on the first and the second page */
-#define NAND_BBT_SCAN2NDPAGE	0x00008000
-/* Search good / bad pattern on the last page of the eraseblock */
-#define NAND_BBT_SCANLASTPAGE	0x00010000
+
 /*
  * Use a flash based bad block table. By default, OOB identifier is saved in
  * OOB area. This option is passed to the default bad block table function.
@@ -123,13 +120,6 @@ struct nand_bbt_descr {
 /* The maximum number of blocks to scan for a bbt */
 #define NAND_BBT_SCAN_MAXBLOCKS	4
 
-/*
- * Constants for oob configuration
- */
-#define NAND_SMALL_BADBLOCK_POS		5
-#define NAND_LARGE_BADBLOCK_POS		0
-#define ONENAND_BADBLOCK_POS		0
-
 /*
  * Bad block scanning errors
  */
@@ -140,7 +130,6 @@ struct nand_bbt_descr {
 /**
  * struct bbm_info - [GENERIC] Bad Block Table data structure
  * @bbt_erase_shift:	[INTERN] number of address bits in a bbt entry
- * @badblockpos:	[INTERN] position of the bad block marker in the oob area
  * @options:		options for this descriptor
  * @bbt:		[INTERN] bad block table pointer
  * @isbad_bbt:		function to determine if a block is bad
@@ -150,7 +139,6 @@ struct nand_bbt_descr {
  */
 struct bbm_info {
 	int bbt_erase_shift;
-	int badblockpos;
 	int options;
 
 	uint8_t *bbt;