🩹 Fix Sim with USE_WATCHDOG disabled

Author: thinkyhead

Marlin/src/HAL/NATIVE_SIM/HAL.h

@@ -208,8 +208,8 @@ class MarlinHAL {
   MarlinHAL() {}
 
   // Watchdog
-  static void watchdog_init()    IF_DISABLED(USE_WATCHDOG, {});
-  static void watchdog_refresh() IF_DISABLED(USE_WATCHDOG, {});
+  static void watchdog_init();
+  static void watchdog_refresh();
 
   static void init() {}        // Called early in setup()
   static void init_board() {}  // Called less early in setup()