Bug 34155: Hide 'Next available' at OPAC when item-level hold is forced

Bug 34155: Hide 'Next available' at OPAC when item-level hold is forced

This was a regression caused by bug 24860

Test plan:
1. Set up circulation rules so that OPAC users can place holds only on
   specific items ("OPAC item level holds" = "force")
2. Try to place a hold at OPAC. The "Next available item" option should
   not appear.
3. Set "OPAC item level holds" to "allow"
4. Try to place a hold at OPAC. The "Next available item" option should
   appear

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>