When modifying holds in staff client via reserve/request.pl or
the holds-tab in members/moremember.pl, the pickup library dropdown
lists libraries not marked for pickup. Hide those branches.
1) Create a branch that is marked as a non-pickup location.
2) Create a hold or a patron.
3) Go to members/moremember.pl for that patron, check the Holds-tab
Pickup library -drop down. It lists the non-pickup branch.
4) Go to reserve/request.pl for that biblio. The Existing hold-table
Pickup library -drop down lists the non-pickup branch.
5) Apply patch.
6) Repeat 3 & 4, drop down no longer lists the non-pickup branch.