intel/denverton_ns: Drop unused save_gpio_route

Change-Id: I58131d77ba23024cd23e38584f8062d330d2564f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34867
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: David Guckian

src/soc/intel/denverton_ns/include/soc/smm.h

@@ -28,7 +28,6 @@ struct smm_relocation_attrs {
 #include <stdint.h>
 void southcluster_smm_clear_state(void);
 void southcluster_smm_enable_smi(void);
-void southcluster_smm_save_gpio_route(uint32_t route);
 #endif
 
 #endif /* _DENVERTON_NS_SMM_H_ */

src/soc/intel/denverton_ns/smm.c

@@ -27,12 +27,6 @@
 #include <soc/pm.h>
 #include <soc/smm.h>
 
-/* Save the gpio route register. The settings are committed from
- * southcluster_smm_enable_smi(). */
-static uint32_t gpio_route;
-
-void southcluster_smm_save_gpio_route(uint32_t route) { gpio_route = route; }
-
 void southcluster_smm_clear_state(void)
 {
 	uint32_t smi_en;