[PRQ#43694] Deletion Request for python2-icalendar

MarsSeed [1] filed a deletion request for python2-icalendar [2]: Unneeded Python2 based utility from 2019. Repo carries the Py3 based python-icalendar. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python2-icalendar/