ichspi: Drop redundant bail-out cases in ich_set_bbar()

ich_set_bbar() is never called for ICH8 nor Bay Trail.

Checked verbose output stays the same on ThinkPad T60 (ICH7).

Change-Id: Ia4af7b4543081f2dfa850c4343989a2f158b43c5
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.sourcearcade.org/c/flashprog/+/176
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/ichspi.c b/ichspi.c
index 1a2c07e..ffcddf6 100644
--- a/ichspi.c
+++ b/ichspi.c
@@ -729,10 +729,6 @@
 	case CHIPSET_CENTERTON:
 		bbar_off = 0x50;
 		break;
-	case CHIPSET_ICH8:
-	case CHIPSET_BAYTRAIL:
-		msg_pdbg("BBAR offset is unknown!\n");
-		return;
 	case CHIPSET_ICH9:
 	default:		/* Future version might behave the same */
 		bbar_off = ICH9_REG_BBAR;