aic7xxx: remove some DV leftovers

Index: linux-2.6/drivers/scsi/aic7xxx/aic7xxx_osm.h
===================================================================
@@ -488,15 +488,9 @@
 
 	spinlock_t		 spin_lock;
 	u_int			 qfrozen;
-	pid_t			 dv_pid;
 	struct timer_list	 completeq_timer;
 	struct timer_list	 reset_timer;
 	struct semaphore	 eh_sem;
-	struct semaphore	 dv_sem;
-	struct semaphore	 dv_cmd_sem;	/* XXX This needs to be in
-						 * the target struct
-						 */
-	struct scsi_device	*dv_scsi_dev;
 	struct Scsi_Host        *host;		/* pointer to scsi host */
 #define AHC_LINUX_NOIRQ	((uint32_t)~0)
 	uint32_t		 irq;		/* IRQ for this adapter */