scsi: qedi: Remove unused declarations

These declarations were never implemented, remove them.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20230822143338.19120-1-yuehaibing@huawei.com


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