Feakster [1] filed a deletion request for vivaldi-arm64 [2]: This package has been orphaned, (probably because `vivaldi` is now available in the Arch Linux ARM community repo). Hence, this PKGBUILD no longer needs to exist.
[1] https://aur.archlinux.org/account/Feakster/ [2] https://aur.archlinux.org/pkgbase/vivaldi-arm64/
