[PRQ#57952] Deletion Request for python2-backports.csv

MarsSeed [1] filed a deletion request for python2-backports.csv [2]: EOL for 4 years, nothing depends on it, no longer useful to keep. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python2-backports.csv/