scsi: ufs: core: Simplify ufshcd_comp_scsi_upiu()

ufshcd_comp_scsi_upiu() has one caller and that caller ensures that
lrbp->cmd != NULL. Hence leave out the lrbp->cmd check from
ufshcd_comp_scsi_upiu().

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20230921192335.676924-4-bvanassche@acm.org


Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>