afc: Fix volume init with a locked device
afc: Fix volume init with a locked device

The first time we connect the device, we won't be able to create a
lockdown client with a handshake, so the volume won't be created at all
and will not show up in nautilus.

Furthermore, we were checking the OS version with a paired lockdown
client (which is not needed, an unpaired one will do just as well)
and checking whether HouseArrest was supported even if the service was
different.

So, we never needed to have a paired lockdown client in the first place,
and we only need to check for the OS version if HouseArrest is what was
requested.

https://bugzilla.gnome.org/show_bug.cgi?id=767399

gicmo/gvfs,gicmo/gvfs,gicmo/gvfs,gicmo/gvfs