Staging: comedi: comedi_fops: Remove unused kmod.h header

Unused after commit f30f2c2d ("staging: comedi:
remove check for CONFIG_KMOD").

Anyway it's included in module.h
Signed-off-by: Cheah Kok Cheong <thrust73@gmail.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/comedi_fops.c

@@ -28,7 +28,6 @@
 #include <linux/delay.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
-#include <linux/kmod.h>
 #include <linux/poll.h>
 #include <linux/init.h>
 #include <linux/device.h>