Having tons of users experience, worry and report harmless denied messages such as /etc/perl/sitecustomize.pl warning ( https://forums.whonix.org/t/var-log-kern-log-contains-4-denied-messages-in-the-last-day ) is not useful.

Therefore no longer install aa-notify by default.

At the same time we should recommend installing aa-notify on the https://www.whonix.org/wiki/AppArmor as well as on the https://www.whonix.org/wiki/Security_Guide so apparmor warnings will still be noticed.