Bug 19936: Replace Check_userid - Update the occurrences

Bug 19936: Replace Check_userid - Update the occurrences

We previously prove that the method and the subroutine were equivalent,
we know update the controller calls.

Test plan:
- Add and update a patron with different variations of userid
(automatically generated or not)
- Import patrons with and without userid, as well as with existing
userid

Signed-off-by: Josef Moravec <josef.moravec@gmail.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>