simplify code

Yuhang Zhao

2023-12-11 438327d56e7c88dd3fbee3d83223d29e5de90653

 src/core/contexts/win32windowcontext_p.h

@@ -21,7 +21,8 @@
            TitleBar,
        };

        void showSystemMenu(const QPoint &pos) override;
        QString key() const override;
        void virtual_hook(int id, void *data) override;

    protected:
        bool setupHost() override;