staging: comedi: me_daq: remove useless for() loop

This for() loop isn't needed. Nothing in the loop uses the 'i'
variable. Remove it.
Signed-off-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/me_daq.c

@@ -319,15 +319,12 @@ static int me_ao_insn_write(struct comedi_device *dev,
 	writew(devpriv->ctrl2, dev->mmio + ME_CTRL2_REG);
 
 	/* Set dac-control register */
-	for (i = 0; i < insn->n; i++) {
-		/* clear bits for this channel */
 	devpriv->dac_ctrl &= ~ME_DAC_CTRL_MASK(chan);
 	if (range == 0)
 		devpriv->dac_ctrl |= ME_DAC_CTRL_GAIN(chan) |
 				     ME_DAC_CTRL_BIPOLAR(chan);
 	else if (range == 1)
 		devpriv->dac_ctrl |= ME_DAC_CTRL_BIPOLAR(chan);
-	}
 	writew(devpriv->dac_ctrl, dev->mmio + ME_DAC_CTRL_REG);
 
 	/* Update dac-control register */