Bug 25538: Don't run search_utf8.t if KOHA_*_URL empty

Bug 25538: Don't run search_utf8.t if KOHA_*_URL empty

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
(cherry picked from commit 7c4d2444057dd2f8ae613ad73328f880258810c7)

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
(cherry picked from commit d1f60037b9d390c4d91bee61b06b7dfda368f3c1)

Signed-off-by: Aleisha Amohia <aleishaamohia@hotmail.com>
(cherry picked from commit 27831fe44293b9503da082739c16dd31f5de87db)
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>