Bug 30813: Remove Koha::MetadataRecord::getKohaField

This was essentially a wrapper around TransformKohaToMarcOneField

After changing and updating, it seems easier not to create the intermediary
object and to just transform the data

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Joonas Kylmälä <joonas.kylmala@iki.fi>

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>

Koha/MetadataRecord.pm

@@ -109,17 +109,4 @@ sub createMergeHash {
     }
 }
 
-=head2 getKohaField
-
-    $metadata->{$key} = $record->getKohaField($kohafield);
-
-=cut
-
-sub getKohaField {
-    my ($self, $kohafield) = @_;
-    if ($self->schema =~ m/marc/) {
-        return C4::Biblio::TransformMarcToKoha({ kohafields => [$kohafield], record => $self->record});
-    }
-}
-
 1;