scsi: bnx2i: Remove unused declarations

Commit cf4e6363 ("[SCSI] bnx2i: Add bnx2i iSCSI driver.") declared but
never implemented these.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20240824084724.3647307-1-yuehaibing@huawei.com


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