Comment 4 for bug 2024842

https://launchpad.net/ubuntu/lunar/i386/libllvmspirvlib15 shows it was deleted with a generic removal comment as part of the cleanup before the lunar release. So the answer is, effectively, nothing in the seed depended on it to hold it in.

And I had dropped the manual override from the script that seeds i386 packages on March 13, with the comment "Drop finished bootstraps" which implies that at the time, removing it from the script did not change the output and result in any packages dropped, so it remained seeded.

Seb, the history shows it was also you that originally seeded it for the new mesa version; but it's apparently not used by current mesa in the archive?