Bug 37155: Remove use of unblessed patron

Bug 37155: Remove use of unblessed patron

This removes the unblessing of the patron object and uses fields form the patron

To test:
Confirm tests still pass:
prove -v t/db_dependent/Holds.t t/db_dependent/Circulation.t t/db_dependent/Holds/DisallowHoldIfItemsAvailable.t t/db_dependent/Reserves.t t/db_dependent/api/v1/holds.t

Signed-off-by: Brendan Lawlor <blawlor@clamsnet.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>