Bug 15367: Do not display repeatable patron attributes in the batch patron modification

Bug 15367: Do not display repeatable patron attributes in the batch patron modification

The repeatable patron attributes are not correctly managed and can cause
data lost. To avoid that, the easier way is not to display them in the
batch patron modification tool.
This should be implemented, as a new enhancement.

Test plan:
Create some patron attributes, some should be repeatable.
Use the batch patron modification tool to modify patrons.
With this patch, the patron attributes marked as repeatable won't be
display anymore.

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Works as described, no koha-qa errors

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Brendan Gallagher brendan@bywatersolutions.com
(cherry picked from commit 9030800e78ad7de868e1c5fa4c9fd469660e6e5d)
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>