mb/google/vilboz: Drop gpio.c from variants/vilboz

Update GPIOs since Vilboz hardware design
follow schematic V3.2, so gpio.c is unnecessary.

BUG=b:157744136
BRANCH=NONE
TEST=flash the bios to vilboz DUT and test touchpad function

Signed-off-by: peichao.wang <peichao.wang@bitland.corp-partner.google.com>
Change-Id: I575f8b233b56185f3281ad7127bc274bda5ea801
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42986
Reviewed-by: Kangheui Won <khwon@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/zork/variants/vilboz/Makefile.inc b/src/mainboard/google/zork/variants/vilboz/Makefile.inc
index af38c88..dc1e411 100644
--- a/src/mainboard/google/zork/variants/vilboz/Makefile.inc
+++ b/src/mainboard/google/zork/variants/vilboz/Makefile.inc
@@ -3,4 +3,3 @@
 subdirs-y += ./spd
 
 ramstage-y += variant.c
-ramstage-y += gpio.c
diff --git a/src/mainboard/google/zork/variants/vilboz/gpio.c b/src/mainboard/google/zork/variants/vilboz/gpio.c
deleted file mode 100644
index 44d3f89..0000000
--- a/src/mainboard/google/zork/variants/vilboz/gpio.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-
-#include <baseboard/gpio.h>
-#include <baseboard/variants.h>
-#include <boardid.h>
-#include <gpio.h>
-#include <soc/gpio.h>
-#include <ec/google/chromeec/ec.h>
-
-/* This table is used by dalboz variant with board version < 2. */
-static const struct soc_amd_gpio bid_1_gpio_set_stage_ram[] = {
-	/* DMIC_SEL */
-	PAD_GPO(GPIO_6, LOW), // Select Camera 1 DMIC
-	/* EN_PWR_TOUCHPAD_PS2 */
-	PAD_GPO(GPIO_67, HIGH),
-};
-
-const struct soc_amd_gpio *variant_override_gpio_table(size_t *size)
-{
-	uint32_t board_version;
-
-	/*
-	 * If board version cannot be read, assume that this is an older revision of the board
-	 * and so apply overrides. If board version is provided by the EC, then apply overrides
-	 * if version < 2.
-	 */
-	if (google_chromeec_cbi_get_board_version(&board_version))
-		board_version = 1;
-
-	if (board_version < 2) {
-		*size = ARRAY_SIZE(bid_1_gpio_set_stage_ram);
-		return bid_1_gpio_set_stage_ram;
-	}
-
-	*size = 0;
-	return NULL;
-}