Bug 16699: Remove requirement from borrowernumberQueryParam
borrowernumberQueryParam shouldn't be required as also changed in Bug 16271.
To test:
1. Don't apply the patch yet, but first minify Swagger and run
t/db_dependent/api/v1/holds.t
2. Observe that some tests fail with response code 400 when expecting 200.
3. Apply patch and minify Swagger
4. Run t/db_dependent/api/v1/holds.t
5. Observe that tests pass.
Signed-off-by: Benjamin Rokseth <benjamin.rokseth@kul.oslo.kommune.no> Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io> Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>