[PRQ#65523] Deletion Request for gli

MarsSeed [1] filed a deletion request for gli [2]: Obsolete, unused package. Also this is headers only, so it does not provide usr/lib/libglm.a that is in Arch/extra/glm. Installing this breaks downstream dependent builds. Upstream was a forked maintenance repo of a 10+ year old C++11 header- only lib. Last stable point release was made in 2016 [a], and the master branch was completely abandoned 3 years ago. [b] [a]: https://github.com/g-truc/gli/tags [b]: https://github.com/g-truc/gli [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/gli/