mb/google/drallion: Remove MAC address pass through

Remove MAC address pass through because when MAC address pass through setting
change to "Use dock built-in MAC address", the MAC address always keeps the VPD
value.

BUG=b:147994020
TEST=tested on drallion and the result as below.
   (Option)                          (Result)
 - Use pre-assigned MAC address    : Pass
 - Use Chromebook built-in address : Pass
 - Use dock built-in MAC address   : Pass

Signed-off-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Change-Id: I1f58e98187feb4e428ca75f7e82c464567528526
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39020
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Mathew King <mathewk@chromium.org>
diff --git a/src/mainboard/google/drallion/dsdt.asl b/src/mainboard/google/drallion/dsdt.asl
index ee63d6e..33ede7a 100644
--- a/src/mainboard/google/drallion/dsdt.asl
+++ b/src/mainboard/google/drallion/dsdt.asl
@@ -48,8 +48,6 @@
 	#include <vendorcode/google/chromeos/acpi/chromeos.asl>
 	/* VPD support */
 	#include <vendorcode/google/chromeos/acpi/vpd.asl>
-	/* MAC address passthru */
-	#include <vendorcode/google/chromeos/acpi/amac.asl>
 #endif
 
 	#include <southbridge/intel/common/acpi/sleepstates.asl>