mb/google/brox/variants/brox/fw_config.c: Remove unused macro

Change-Id: I8ce94c8bc7ed137eaace12d6cb0befa6c0d39a37
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82925
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yidi Lin <yidilin@google.com>
Reviewed-by: Eric Lai <ericllai@google.com>

src/mainboard/google/brox/variants/brox/fw_config.c

@@ -5,7 +5,6 @@
 #include <fw_config.h>
 #include <gpio.h>
 
-#define GPIO_PADBASED_OVERRIDE(b, a) gpio_padbased_override(b, a, ARRAY_SIZE(a))
 #define ISH_FIRMWARE_NAME "brox_ish.bin"
 
 static const struct pad_config ish_enable_pads[] = {