Bug 20310: (follow-up) Move syspref check into controller

Bug 20310: (follow-up) Move syspref check into controller

I believe the syspref check is better placed in the controller. This way
the host_record method is not so closely tied to the articel requests
feature and may subsequently prove useful to future use cases.

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>