media: atomisp: Remove atomisp_[sub]dev_users()

The atomisp_[sub]dev_users() functions are not used anymore,
remove them.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/staging/media/atomisp/pci/atomisp_fops.c

@@ -489,16 +489,6 @@ static void atomisp_subdev_init_struct(struct atomisp_sub_device *asd)
 /*
  * file operation functions
  */
-static unsigned int atomisp_subdev_users(struct atomisp_sub_device *asd)
-{
-	return asd->video_out.users;
-}
-
-unsigned int atomisp_dev_users(struct atomisp_device *isp)
-{
-	return atomisp_subdev_users(&isp->asd);
-}
-
 static int atomisp_open(struct file *file)
 {
 	struct video_device *vdev = video_devdata(file);

drivers/staging/media/atomisp/pci/atomisp_fops.h

@@ -22,9 +22,6 @@
 #define	__ATOMISP_FOPS_H__
 #include "atomisp_subdev.h"
 
-unsigned int atomisp_dev_users(struct atomisp_device *isp);
-unsigned int atomisp_sub_dev_users(struct atomisp_sub_device *asd);
-
 /*
  * Memory help functions for image frame and private parameters
  */