Bug 18260: Koha::Biblio - Remove GetBiblio

Bug 18260: Koha::Biblio - Remove GetBiblio

C4::Biblio::GetBiblio can be replaced with Koha Biblio->find

Test plan:
Import batch, view issue history, search for items, see the image of a
bibliographic record, modify and delete records in a batch

Followed test plan, works as expected.
Signed-off-by: Marc Véron <veron@veron.ch>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>