[PATCH 0/1] MR9738: win32u: Remove unnecessary drawable flush in context_sync_drawables.

[Rémi Bernon]

This fixes sluggish rendering of Steam and other CEF based applications,
as wined3d calls wglMakeCurrent with possibly already active surface
every time it tries to activate a context.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/9738