Re: [PATCH v2 0/1] MR1760: opengl32: Avoid calling functions that have not been queried yet.

[Rémi Bernon]

v2: Remove unnecessary `void *` return from `unmap_buffer` / `unmap_named_buffer` helpers.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/1760#note_19317