staging: comedi: icp_multi: remove unused members from private data

	unsigned int DacCmdStatus;	/*  DAC Command/Status register */

	unsigned int IntEnable;	/*  Interrupt Enable register */

	unsigned int IntStatus;	/*  Interrupt Status register */

	unsigned int act_chanlist[32];	/*  list of scanned channel */

	unsigned char act_chanlist_len;	/*  len of scanlist */

	unsigned char act_chanlist_pos;	/*  actual position in MUX list */

	unsigned int *ai_chanlist;	/*  actaul chanlist */

	unsigned int do_data;	/*  Remember digital output data */

};

static void setup_channel_list(struct comedi_device *dev,

	unsigned int i, range, chanprog;

	unsigned int diff;

	devpriv->act_chanlist_len = n_chan;

	devpriv->act_chanlist_pos = 0;

	for (i = 0; i < n_chan; i++) {

		/*  Get channel */

		chanprog = CR_CHAN(chanlist[i]);