[PRQ#65936] Deletion Request for fbx-conv-git

MarsSeed [1] filed a deletion request for fbx-conv-git [2]: Broken since 2019, abandoned package from 2016. Also upstream is not maintained since 2020. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/fbx-conv-git/