[PRQ#46688] Deletion Request for python2-dnspython

MarsSeed [1] filed a deletion request for python2-dnspython [2]: Unneeded. Broken ever since it was dropped from repo in 2022-09. And so is its only consumer, mailman, pending deletion (PRQ#44171). [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python2-dnspython/