Function unit_destroyed_callback

src/world/script_world.cpp:27–32

	}

	static void unit_destroyed_callback(ScriptWorld &sw, UnitId unit)
	{
		ScriptId inst = script_world::instance(sw, unit);
		if (is_valid(inst))
			script_world::destroy(sw, inst);
	}

	static void unit_destroyed_callback_bridge(UnitId unit, void *user_ptr)
	{