scsi: snic: Remove useless code in snic_dr_clean_pending_req()

Return error code directly to save space and be more clear.

Signed-off-by: Su Hui <suhui@nfschina.com>
Link: https://lore.kernel.org/r/20231020023326.43898-1-suhui@nfschina.com


Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>