LDAP: Disable token groups by default
We tried to speed up processing of initgroup lookups with tokenGroups even for
the LDAP provider (if remote server is Active Directory), but it turns out that
there are too many corner cases that we didn't catch during development that
break. For instance, groups from other trusted domains might appear in TG and
the LDAP provider isn't equipped to handle them.
Overall, users who wish to use the added speed benefits of tokenGroups are
advised to use the AD provider.
Resolves:
https://fedorahosted.org/sssd/ticket/2483
Reviewed-by: Michal Židek <mzidek@redhat.com>
(cherry picked from commit 5febf5ed0cfb4ba7665d8c3e36ee6941988da773)