staging: comedi: ni_mio_cs: remove NI_SIZE define

This define is not used by the driver. 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/ni_mio_cs.c

@@ -54,8 +54,6 @@ See the notes in the ni_atmio.o driver.
  *  AT specific setup
  */
 
-#define NI_SIZE 0x20
-
 static const struct ni_board_struct ni_boards[] = {
 	{
 		.device_id	= 0x010d,