[MTD] NAND: Remove unmaintained tx49xx board drivers

The drivers are unmaintained since long and reference include files
which are not available in the kernel. Original author is not longer
responsible and no new maintainer showed up within 3 month.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

drivers/mtd/nand/Kconfig

@@ -58,20 +58,6 @@ config MTD_NAND_TOTO
 config MTD_NAND_IDS
 	tristate
 
-config MTD_NAND_TX4925NDFMC
-	tristate "SmartMedia Card on Toshiba RBTX4925 reference board"
-	depends on TOSHIBA_RBTX4925 && MTD_NAND && TOSHIBA_RBTX4925_MPLEX_NAND
-	help
-	  This enables the driver for the NAND flash device found on the
-	  Toshiba RBTX4925 reference board, which is a SmartMediaCard.
-
-config MTD_NAND_TX4938NDFMC
-	tristate "NAND Flash device on Toshiba RBTX4938 reference board"
-	depends on TOSHIBA_RBTX4938 && MTD_NAND && TOSHIBA_RBTX4938_MPLEX_NAND 
-	help
-	  This enables the driver for the NAND flash device found on the
-	  Toshiba RBTX4938 reference board.
-
 config MTD_NAND_AU1550
 	tristate "Au1550 NAND support"
 	depends on SOC_AU1550 && MTD_NAND

drivers/mtd/nand/Makefile

@@ -10,8 +10,6 @@ obj-$(CONFIG_MTD_NAND_SPIA)		+= spia.o
 obj-$(CONFIG_MTD_NAND_TOTO)		+= toto.o
 obj-$(CONFIG_MTD_NAND_AUTCPU12)		+= autcpu12.o
 obj-$(CONFIG_MTD_NAND_EDB7312)		+= edb7312.o
-obj-$(CONFIG_MTD_NAND_TX4925NDFMC)	+= tx4925ndfmc.o
-obj-$(CONFIG_MTD_NAND_TX4938NDFMC)	+= tx4938ndfmc.o
 obj-$(CONFIG_MTD_NAND_AU1550)		+= au1550nd.o
 obj-$(CONFIG_MTD_NAND_PPCHAMELEONEVB)	+= ppchameleonevb.o
 obj-$(CONFIG_MTD_NAND_S3C2410)		+= s3c2410.o