[PATCH 0/1] MR3072: winex11: Replace the clipping message HWND with a BOOL flag.

[Rémi Bernon]

We don't need the window anymore, it was only used to send ClipCursor
notifications. This improves cursor clipping performance a lot as it
avoids re-creating a window every time.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/3072