At the moment there are no good ways. But you can either edit all files in /etc/pam.d and remove the pam_systemd_home.so entries, or remove /usr/lib/security/pam_systemd_home.so
Since the entries in /etc/pam.d are optional there is no big downside of deleting /usr/lib/security/pam_systemd_home.so at the moment. You can also add this file to NoExtract and it will not reinstalled at the next systemd update.