Until now archives were managed only if activated from Nautilus itself
and if a setting was set.

There are two main problems with this.
1- Archives opened in other apps cannot be handled by Nautilus
2- Users cannot use the regular mime type handling for setting Nautilus
as the app handling archives, or unsetting it.

This patch add support for archives mime types handled by gnome-autoar
and removes the UI and setting used in the previous version.

https://bugzilla.gnome.org/show_bug.cgi?id=771424