Bug 31095: Remove GetDebarments from Koha::Patron::Debarments
This patch finally removes GetDebarments from the codebase.
Test plan
1. Confirm GetDebarments is no longer mentioned in the codebase. `git
grep GetDebarments`
2. Confirm t/db_dependent/Patron/Borrower_Debarments.t continues to pass
Signed-off-by: Nick Clemens <nick@bywatersolutions.com> Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org> Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>