scsi: iscsi: Remove unused iscsi_create_session()

iscsi_create_session() last use was removed in 2008 by commit 75613521
("[SCSI] iscsi: remove session and host binding in libiscsi")

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://lore.kernel.org/r/20241223180110.50266-1-linux@treblig.org


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