[SCSI] remove cmd->serial_number litter

Stop using cmd->serial_number in printks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index 8ba5744..d838205 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -4066,7 +4066,7 @@
 	   } */
 	printk("  tag=%d, transfersize=0x%x \n",
 	       cmd->tag, cmd->transfersize);
-	printk("  Pid=%li, SP=0x%p\n", cmd->serial_number, CMD_SP(cmd));
+	printk("  SP=0x%p\n", CMD_SP(cmd));
 	printk(" underflow size = 0x%x, direction=0x%x\n",
 	       cmd->underflow, cmd->sc_data_direction);
 }