staging: comedi: addi_apci_1564: board does not have analog outputs

The board supported by this driver does not have analog outputs.  Remove
the subdevice init for it.
Signed-off-by: Chase Southwood <chase.southwood@gmail.com>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/addi_apci_1564.c

@@ -148,17 +148,8 @@ static int apci1564_auto_attach(struct comedi_device *dev,
 
 	/*  Allocate and Initialise AO Subdevice Structures */
 	s = &dev->subdevices[1];
-	if (devpriv->s_EeParameters.i_NbrAoChannel) {
-		s->type = COMEDI_SUBD_AO;
-		s->subdev_flags = SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
-		s->n_chan = devpriv->s_EeParameters.i_NbrAoChannel;
-		s->maxdata = devpriv->s_EeParameters.i_AoMaxdata;
-		s->len_chanlist =
-			devpriv->s_EeParameters.i_NbrAoChannel;
-		s->insn_write = this_board->ao_write;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
+	s->type = COMEDI_SUBD_UNUSED;
+
 	/*  Allocate and Initialise DI Subdevice Structures */
 	s = &dev->subdevices[2];
 	if (devpriv->s_EeParameters.i_NbrDiChannel) {