Bug#797067: apt: please restore upgrade auto-autoremove

[RjY <rjy@users.sourceforge.net>]

Package: apt
Version: 1.6~alpha5
Severity: wishlist

    % grep AutomaticRemove /etc/apt/apt.conf
    APT::Get::AutomaticRemove "true";
    % sudo apt upgrade
    [...]
    The following packages were automatically installed and are
    no longer required:
    [...]
    Use 'sudo apt autoremove' to remove them.

May apt upgrade go back to honoring APT::Get::AutomaticRemove "true"; ?
This used to work, but was broken, apparently deliberately, in #855891.
Having to ^C upgrade and rerun with --autoremove is... "suboptimal" :).