mb/amd/mandolin: Drop mainboard.asl

This change drops mainboard.asl from zork because none of the objects
defined in it are used.

Change-Id: I879b5614fb5d12c4814ee52f840a000744a7aab9
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43520
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/amd/mandolin/acpi/mainboard.asl

@@ -1,14 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-
-/* Memory related values */
-Name(LOMH, 0x0)	/* Start of unused memory in C0000-E0000 range */
-Name(PBAD, 0x0)	/* Address of BIOS area (If TOM2 != 0, Addr >> 16) */
-Name(PBLN, 0x0)	/* Length of BIOS area */
-
-Name(PCBA, CONFIG_MMCONF_BASE_ADDRESS)	/* Base address of PCIe config space */
-Name(PCLN, Multiply(0x100000, CONFIG_MMCONF_BUS_NUMBER)) /* Length of PCIe config space, 1MB each bus */
-Name(HPBA, 0xFED00000)	/* Base address of HPET table */
-
-/* Some global data */
-Name(OSVR, 3)	/* Assume nothing. WinXp = 1, Vista = 2, Linux = 3, WinCE = 4 */
-Name(OSV, Ones)	/* Assume nothing */

src/mainboard/amd/mandolin/dsdt.asl

@@ -17,9 +17,6 @@ DefinitionBlock (
 	/* global NVS and variables */
 	#include <globalnvs.asl>
 
-	/* Globals for the platform */
-	#include "acpi/mainboard.asl"
-
 	/* PCI IRQ mapping for the Southbridge */
 	#include <pcie.asl>