Address type piracy compilation failures (fix #120)

[sefffal]

This PR just removes some apparently unneeded diff rules that pirated static arrays.
Running ]test TemporalGPs passes after removing these lines.

[sefffal]

cc @willtebbutt

[sefffal]

Hi all, I know there is work on a migration to Enzyme, but in the meantime could we look at merging this PR or similar? I'm still getting compilation errors in OctofitterRadialVelocity on 1.10 due to this issue.

Thanks for your help!

[willtebbutt]

Hi @sefffal -- sorry for dropping this. I'm just running CI again to see if the tests start passing. I'm happy to merge if they do, and to assist debugging if they don't. I agree that it would be good to get this sorted.

[sefffal]

@willtebbutt thanks so much! It's no problem, I have a mountain of OSS issues to tackle myself ;)

It looks like my changes were a little over broad and causing failures, we might need to be more surgical and just remove the one offending method.

[willtebbutt]

Closing as this is now outdated. Please feel free to re-open if you feel there's more to be done.