remove Wpacked and cleanup unused warning flags

src/modules/navigator/geofence.h

@@ -131,7 +131,7 @@ private:
 	control::BlockParamInt _param_max_hor_distance;
 	control::BlockParamInt _param_max_ver_distance;
 
-	unsigned _outside_counter;
+	int _outside_counter;
 
 	bool inside(double lat, double lon, float altitude);
 	bool inside(const struct vehicle_global_position_s &global_position);