Codechange: use default dtor instead of empty (#10826)

src/effectvehicle_base.h

@@ -28,7 +28,7 @@ struct EffectVehicle FINAL : public SpecializedVehicle<EffectVehicle, VEH_EFFECT
 	/** We don't want GCC to zero our struct! It already is zeroed and has an index! */
 	EffectVehicle() : SpecializedVehicleBase() {}
 	/** We want to 'destruct' the right class. */
-	virtual ~EffectVehicle() {}
+	virtual ~EffectVehicle() = default;
 
 	void UpdateDeltaXY();
 	bool Tick();