Zetabite [1] filed a deletion request for ultimmc-bin [2]: This launcher infringes upon the trademark or similar of Mircosoft/Mojang by distributing Minecraft without the need of a valid account. This is per the license of Microsoft/Mojang not allowed.
[1] https://aur.archlinux.org/account/Zetabite/ [2] https://aur.archlinux.org/pkgbase/ultimmc-bin/