[PRQ#45575] Deletion Request for grinder

MarsSeed [1] filed a deletion request for grinder [2]: Orphan package from 2015. This Java load-testing framework has been discontinued since that year. [a] No need to keep this package, as there are very good and currently maintained alternatives. [a]: https://sourceforge.net/projects/grinder/ [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/grinder/