illuser [1] filed a deletion request for php-phalcon3 [2]: php-phalcon is now on v5. There really is no need to keep around the v3 build as people have had plenty of time to update to newer, supported versions.
[1] https://aur.archlinux.org/account/illuser/ [2] https://aur.archlinux.org/pkgbase/php-phalcon3/
