C4::Koha::GetItemTypesByCategory can be easily replaced with
Koha::ItemTypes->search({ searchcategory => ? });
So let's replace it where it is used.
Test plan:
Make sure this patch does not break the test plan of bug 10937
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>