Bug 26580: Remove unused C4::Acquisition::DelBasket function
Bug 26577 removed the only use of it.
To test:
1. Apply this patch
2. Run:
$ git grep DelBasket
=> SUCCESS: Only finds references to DelBasketGroup
3. Sign off :-D
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io> Signed-off-by: David Nind <david@davidnind.com> Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com> Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>