Staging: comedi: comedi_fops: Remove redundant init.h header

After commit 0fd972a7 ("module: relocate module_init
from init.h to module.h"), including module.h will do and
init.h is also thrown in.
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

@@ -29,7 +29,6 @@
 #include <linux/mm.h>
 #include <linux/slab.h>
 #include <linux/poll.h>
-#include <linux/init.h>
 #include <linux/device.h>
 #include <linux/vmalloc.h>
 #include <linux/fs.h>