add missing win32 constant for old win sdk

Zhao Yuhang

2025-03-11 c00e986f38dbc4843d92cc76a385f826658c1e03

 src/quick/quickwindowagent.cpp

@@ -44,9 +44,6 @@
            return false;
        }

        // Make sure the native window handle is actually created before we apply
        // various hooks. But we don't need the actual window handle so just ignore it.
        std::ignore = window->winId();
        d->setup(window, new QuickItemDelegate());
        d->hostWindow = window;