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Also, stop setting wsi_device::signal_semaphore/fence_with_memory because those cause the WSI code to call the function we just dropped. Since the core WSI code is now setting dummy syncs by default, we don't need any of this anymore. Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4037>