This patch updates the only use of prepare_host_field to use the well
tested Koha::Biblio->generate_marc_host_field method instead and then
removes the aforementioned prepare_host_field method from C4::Biblio.
Test plan
1) Ensure the "enhanced workflow" for creating analytics still functions
as expected.
Sponsored-by: Open Fifth <https://openfifth.co.uk>
Signed-off-by: Heather Hernandez <flyingendpaper@gmail.com>
Signed-off-by: Martin Renvoize <martin.renvoize@openfifth.co.uk>
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>