Fix functions with empty params (#19647)

* Fix functions with empty params

* Found a bunch more

users/ericgebhart/extensions/oneshot.c

@@ -50,7 +50,7 @@ static int8_t        set_modifier_state_all(oneshot_state new_state);
 static void          set_modifier_state_all_from_to(oneshot_state oneshot_state_from, oneshot_state oneshot_state_to);
 static bool          all_modifiers_are_off(void);
 
-int8_t turnoff_oneshot_modifiers() {
+int8_t turnoff_oneshot_modifiers(void) {
     return set_modifier_state_all(ONESHOT_STATE_OFF);
 }
 
@@ -163,7 +163,7 @@ void set_modifier_state_all_from_to(oneshot_state oneshot_state_from, oneshot_st
     }
 }
 
-bool all_modifiers_are_off() {
+bool all_modifiers_are_off(void) {
     for (int8_t i = 0; i < ONESHOT_MOD_COUNT; i++) {
         if (modifiers_with_state[i] != ONESHOT_STATE_OFF) {
             return false;

users/ericgebhart/oled/oled_stuff.c

@@ -47,7 +47,7 @@ void oled_render_mod_status(uint8_t modifiers) {
   oled_write_P(PSTR("G"), (modifiers & MOD_MASK_GUI));
 }
 
-void oled_render_mod_lock_status(){
+void oled_render_mod_lock_status(void){
   oled_render_mod_status(get_mods() | get_oneshot_mods());
   oled_render_keylock_status(host_keyboard_leds());
 }