[PRQ#50747] Deletion Request for mapcache

[notify]

MarsSeed [1] filed a deletion request for mapcache [2]:

Niche, outdated mapserver module that's not used by anyone off of AUR.

[1] https://aur.archlinux.org/account/MarsSeed/
[2] https://aur.archlinux.org/pkgbase/mapcache/