CRISv32: Drop obsolete file for SPI driver

File was already deleted.
Signed-off-by: NJesper Nilsson <jesper.nilsson@axis.com>

arch/cris/arch-v32/drivers/Makefile

@@ -10,4 +10,3 @@ obj-$(CONFIG_ETRAX_IOP_FW_LOAD)         += iop_fw_load.o
 obj-$(CONFIG_ETRAX_I2C)			+= i2c.o
 obj-$(CONFIG_ETRAX_SYNCHRONOUS_SERIAL)	+= sync_serial.o
 obj-$(CONFIG_PCI)			+= pci/
-obj-$(CONFIG_ETRAX_SPI_MMC_BOARD)	+= board_mmcspi.o