[SCSI] hosts.c: removed one unneeded shost->active_mode assignment

In the following if/else statement, shost->active_mode will always be set,
so this assignment is unneeded.

Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index ed7e0a1f..1592640 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -347,7 +347,6 @@
 	shost->unchecked_isa_dma = sht->unchecked_isa_dma;
 	shost->use_clustering = sht->use_clustering;
 	shost->ordered_tag = sht->ordered_tag;
-	shost->active_mode = sht->supported_mode;
 
 	if (sht->supported_mode == MODE_UNKNOWN)
 		/* means we didn't set it ... default to INITIATOR */