Bug#781387: mate-session-manager: inconsistent behavior of mate-session-manager in reaction to gnome-compat options

[Igor Liferenko]

Confirm that the following disables gnome-keyring daemon completely:

Copy gnome-keyring-pkcs11.desktop, gnome-keyring-secrets.desktop and
gnome-keyring-ssh.desktop from /etc/xdg/autostart/ to
~/.config/autostart/ and add X-MATE-Autostart-enabled=false to each of
them.

There was some messing with this option circa januare 2015, as can be seen here

    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=775189
    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=775256

Still, it is not clear to me what for was created the option
"org.mate.session gnome-compat-startup". Please explain.

The default values for this option are "keyring" and "smproxy". It
does not work for "keyring", and no "smproxy" process seems to be
started by default. Thus, it seems that this option is not used for
anything. Maybe remove it completely?