[PRQ#43266] Deletion Request for python2-stsci_rtd_theme

MarsSeed [1] filed a deletion request for python2-stsci_rtd_theme [2]: Old, unneeded Python2 package: a custom ReadTheDocs template for generating hypertext documentation. - Not used by anything on AUR. - python2-sphinx documentation generator has been broken Nov 2021. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python2-stsci_rtd_theme/