[SCSI] aic7xxx: remove ahc_tailq

now that we do normal PCI probing there's no need to keep a list of
all HBAs.

Rejections fixed up and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/aic7xxx/aic7770.c b/drivers/scsi/aic7xxx/aic7770.c
index 92703bb..00f3bd1 100644
--- a/drivers/scsi/aic7xxx/aic7770.c
+++ b/drivers/scsi/aic7xxx/aic7770.c
@@ -254,19 +254,12 @@
 	if (error != 0)
 		return (error);
 
-	ahc_list_lock(&l);
-	/*
-	 * Link this softc in with all other ahc instances.
-	 */
-	ahc_softc_insert(ahc);
+	ahc->init_level++;
 
 	/*
 	 * Enable the board's BUS drivers
 	 */
 	ahc_outb(ahc, BCTL, ENABLE);
-
-	ahc_list_unlock(&l);
-
 	return (0);
 }