Bug 13074: (followup) remove useless diag

Bug 13074: (followup) remove useless diag

On running all Items-related tests some useless diag showed up. Removing it.

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit de6c1375f76b562970d7515192a002af8babc740)
Signed-off-by: Frédéric Demians <f.demians@tamil.fr>
(cherry picked from commit 5185adc1bae9241f919c8ecd5fc98c4b0b6bd6a4)
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>