mhdi [1] filed a deletion request for texlive-aastex6 [2]: texlive-publishers in [extra] provides texlive-aastex6. The name (texlive-aastex) is different, but the version is the same.
[1] https://aur.archlinux.org/account/mhdi/ [2] https://aur.archlinux.org/pkgbase/texlive-aastex6/
