scsi: core: Remove unused scsi_dev_info_list_del_keyed()

The last use of scsi_dev_info_list_del_keyed() was removed by 2011's
commit 2b132577 ("[SCSI] scsi_dh: code cleanup and remove the
references to scsi_dev_info")

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://lore.kernel.org/r/20250503230743.124978-1-linux@treblig.org


Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>