users: tests: Do not remove LDAP user when testing views

Fixes an issue where the LDAP user 'tester' was removed after testing test_views.py. It happened when there were two admin users present.

Tested with both stable and testing containers that all the users module tests pass and a user 'tester' is not removed when two admin users exists.

Signed-off-by: Veiko Aasa veiko17@disroot.org