misc/xilinx_sdfec: remove redundant _{open, release} function

The functions are redundant as they are empty and performed by the misc
driver.
Signed-off-by: Bo Svangård <bo.svangard@sylog.se>
Acked-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20230422195933.523874-1-bo.svangard@sylog.seSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/xilinx_sdfec.c

@@ -855,16 +855,6 @@ static int xsdfec_cfg_axi_streams(struct xsdfec_dev *xsdfec)
 	return 0;
 }
 
-static int xsdfec_dev_open(struct inode *iptr, struct file *fptr)
-{
-	return 0;
-}
-
-static int xsdfec_dev_release(struct inode *iptr, struct file *fptr)
-{
-	return 0;
-}
-
 static int xsdfec_start(struct xsdfec_dev *xsdfec)
 {
 	u32 regread;
@@ -1030,8 +1020,6 @@ static __poll_t xsdfec_poll(struct file *file, poll_table *wait)
 
 static const struct file_operations xsdfec_fops = {
 	.owner = THIS_MODULE,
-	.open = xsdfec_dev_open,
-	.release = xsdfec_dev_release,
 	.unlocked_ioctl = xsdfec_dev_ioctl,
 	.poll = xsdfec_poll,
 	.compat_ioctl = compat_ptr_ioctl,