Replace three lines by one function call which does the same thing

Saves 42 bytes of flash memory

Firmware/menu.cpp

@@ -152,9 +152,7 @@ void menu_submenu_no_reset(menu_func_t submenu)
 
 uint8_t menu_item_ret(void)
 {
-	lcd_beeper_quick_feedback();
-	lcd_draw_update = 2;
-	lcd_button_pressed = false;
+	lcd_quick_feedback();
 	return 1;
 }