staging: comedi: do not include <linux/delay.h> if its not needed

Some of the comedi files include this header but don't need it.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers.c

@@ -23,7 +23,6 @@
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/fcntl.h>
-#include <linux/delay.h>
 #include <linux/ioport.h>
 #include <linux/mm.h>
 #include <linux/slab.h>

drivers/staging/comedi/drivers/c6xdigio.c

@@ -35,7 +35,6 @@ This driver will not work with a 2.4 kernel.
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/errno.h>
-#include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/timex.h>
 #include <linux/timer.h>

drivers/staging/comedi/drivers/cb_pcimdas.c

@@ -37,7 +37,6 @@ See http://www.mccdaq.com/PDFs/Manuals/pcim-das1602-16.pdf for more details.
 
 #include <linux/module.h>
 #include <linux/pci.h>
-#include <linux/delay.h>
 #include <linux/interrupt.h>
 
 #include "../comedidev.h"

drivers/staging/comedi/drivers/das08.c

@@ -34,7 +34,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/delay.h>
 
 #include "../comedidev.h"
 

drivers/staging/comedi/drivers/das08_cs.c

@@ -40,7 +40,6 @@ Command support does not exist, but could be added for this board.
 */
 
 #include <linux/module.h>
-#include <linux/delay.h>
 
 #include "../comedidev.h"
 

drivers/staging/comedi/drivers/ni_atmio.c

@@ -93,7 +93,6 @@ are not supported.
 #include <linux/interrupt.h>
 #include "../comedidev.h"
 
-#include <linux/delay.h>
 #include <linux/isapnp.h>
 
 #include "ni_stc.h"

drivers/staging/comedi/drivers/pcl724.c

@@ -28,8 +28,6 @@
 #include <linux/module.h>
 #include "../comedidev.h"
 
-#include <linux/delay.h>
-
 #include "8255.h"
 
 #define SIZE_8255	4

drivers/staging/comedi/drivers/pcm3724.c

@@ -31,8 +31,6 @@ Copy/pasted/hacked from pcm724.c
 #include <linux/module.h>
 #include "../comedidev.h"
 
-#include <linux/delay.h>
-
 #include "8255.h"
 
 #define PCM3724_SIZE   16

drivers/staging/comedi/kcomedilib/kcomedilib_main.c

@@ -22,7 +22,6 @@
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/fcntl.h>
-#include <linux/delay.h>
 #include <linux/mm.h>
 #include <linux/io.h>