staging: comedi: addi_apci_1710: remove COMEDI_SUBD_TTLIO define

This define exists in hwdrv_APCI1710.c, where it's actually used.
Remove the duplicate define.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/addi_apci_1710.c

@@ -19,10 +19,6 @@ static void fpu_end(void)
 #include "addi-data/addi_eeprom.c"
 #include "addi-data/hwdrv_APCI1710.c"
 
-#ifndef COMEDI_SUBD_TTLIO
-#define COMEDI_SUBD_TTLIO   11	/* Digital Input Output But TTL */
-#endif
-
 static const struct addi_board apci1710_boardtypes[] = {
 	{
 		.pc_DriverName		= "apci1710",