staging: comedi: addi_apci_3120: remove test for DO subdevice

The boards supported by this driver all have digital outputs.
Remove the test for it.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/addi_apci_3120.c

@@ -259,7 +259,6 @@ static int apci3120_attach_pci(struct comedi_device *dev,
 	}
 	/*  Allocate and Initialise DO Subdevice Structures */
 	s = &dev->subdevices[3];
-	if (this_board->i_NbrDoChannel) {
 	s->type = COMEDI_SUBD_DO;
 	s->subdev_flags =
 		SDF_READABLE | SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
@@ -274,9 +273,6 @@ static int apci3120_attach_pci(struct comedi_device *dev,
 	s->insn_write = this_board->do_write;
 	s->insn_bits = this_board->do_bits;
 	s->insn_read = this_board->do_read;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
 
 	/*  Allocate and Initialise Timer Subdevice Structures */
 	s = &dev->subdevices[4];