README: Remove CONFIG_SPI_FLASH_BAR help text

Since the help text is added in drivers/mtd/spi/Kconfig
Signed-off-by: NJagan Teki <jteki@openedev.com>

README

@@ -3079,11 +3079,6 @@ CBFS (Coreboot Filesystem) support
 		Define this option to include a destructive SPI flash
 		test ('sf test').
 
-		CONFIG_SPI_FLASH_BAR		Ban/Extended Addr Reg
-
-		Define this option to use the Bank addr/Extended addr
-		support on SPI flashes which has size > 16Mbytes.
-
 		CONFIG_SF_DUAL_FLASH		Dual flash memories
 
 		Define this option to use dual flash support where two flash