[PRQ#43935] Deletion Request for python2-lttngust

MarsSeed [1] filed a deletion request for python2-lttngust [2]: Proposal to delete these old Python2 bindings for the much newer version of lttng-ust in repo. The corresponding Py3 bindings are also available in repo. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python2-lttngust/