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They're more trouble than they're worth for us. They were originally lifted unthinkingly from ACO, where I assume they're necessary for software CF lowering, but they're just an inconvenient convenience for us. Remove em. Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25052>