[PRQ#48638] Deletion Request for python36

MarsSeed [1] filed a deletion request for python36 [2]: Cleanup proposal to delete this unneeded legacy Python pkg. - Feature development ended after 24 Dec 2018. - Last maintenence release was on 3 Sep 2021. - Bugfix and security support ended after 23 Dec 2021. On AUR, only two abandoned, unmaintained packages depend on this: - arm-none-eabi-gdb-linaro from 2018 (deletion request: PRQ#48634) - oselas-2018.02-arm-v7a-linux-gnueabihf-bin (source missing; deletion request: PRQ#48637) [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python36/