ships_face: fix compiler warnings (#186)

movement/watch_faces/complication/sailing_face.c

@@ -33,7 +33,6 @@
 
 #define sl_SELECTIONS 6
 #define DEFAULT_MINUTES { 5,4,1,0,0,0 }
-#define UNUSED(x) (void)(x)
 
 static inline int32_t get_tz_offset(movement_settings_t *settings) {
     return movement_timezone_offsets[settings->bit.time_zone] * 60;
@@ -66,7 +65,7 @@ static void start(sailing_state_t *state, movement_settings_t *settings) {
 }
 
 static void draw(sailing_state_t *state, uint8_t subsecond, movement_settings_t *settings) {
-    UNUSED(settings);
+    (void) settings;
 
     char tmp[24];
     char buf[16];