mb/intel/adlrvp: Remove unused EC_SYNC_IRQ GPIO on ADLRVP

As per latest schematics GPP_A15 is not used for EC_SYNC_IRQ
hence remove the unused GPIO.

Wrong GPIO configuration is causing platform reboot issue on
ADLRVP with Chrome SKU.

Change-Id: I704cd722683258c80197d8872d3bdaafb7c923dc
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48131
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: V Sowmya <v.sowmya@intel.com>
diff --git a/src/mainboard/intel/adlrvp/include/baseboard/ec.h b/src/mainboard/intel/adlrvp/include/baseboard/ec.h
index 4303faf..c018299 100644
--- a/src/mainboard/intel/adlrvp/include/baseboard/ec.h
+++ b/src/mainboard/intel/adlrvp/include/baseboard/ec.h
@@ -56,9 +56,6 @@
 /* Enable EC backed ALS device in ACPI */
 #define EC_ENABLE_ALS_DEVICE
 
-/* Enable EC sync interrupt, EC_SYNC_IRQ is defined in baseboard/gpio.h */
-#define EC_ENABLE_SYNC_IRQ
-
 /* Enable EC backed PD MCU device in ACPI */
 #define EC_ENABLE_PD_MCU_DEVICE
 
diff --git a/src/mainboard/intel/adlrvp/include/baseboard/gpio.h b/src/mainboard/intel/adlrvp/include/baseboard/gpio.h
index b61276c..de0adf6 100644
--- a/src/mainboard/intel/adlrvp/include/baseboard/gpio.h
+++ b/src/mainboard/intel/adlrvp/include/baseboard/gpio.h
@@ -12,7 +12,4 @@
 /* EC wake is LAN_WAKE# which is a special DeepSX wake pin */
 #define GPE_EC_WAKE	GPE0_LAN_WAK
 
-/* EC sync IRQ */
-#define EC_SYNC_IRQ	GPP_A15_IRQ
-
 #endif /* __BASEBOARD_GPIO_H__ */