Bug 37964: Only show host items when system preference EasyAnalyticalRecords is enabled

Bug 37964: Only show host items when system preference EasyAnalyticalRecords is enabled

After Bug 33496, host items are displayed even when system preference EasyAnalyticalRecords is disabled.

Test plan :
1) Build an analytical record with 773$0 and $9
2) Enable 'EasyAnalyticalRecords'
3) Go to catalogue details page
=> You see the linked item
4) Disable EasyAnalyticalRecords
5) Go to catalogue details page
=> You dont see the linked item

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