[sssd PR#5766][comment] [WiP] Sources cleanup - part 3.

[alexey-tikhonov]

URL: https://github.com/SSSD/sssd/pull/5766
Title: #5766: [WiP] Sources cleanup - part 3.

alexey-tikhonov commented:
"""
> `test_pam_responder.py::test_krb5_auth` seems to be broken on Debian target.

I installed Debian11 in local VM, compiled master branch (i.e. without my patches) and tried a couple of runs:
 - being run alone `test_krb5_auth` and `test_krb5_auth_domains` - succeed
 - being run within complete suite - both fail (and also `test_innetgr_with_threads` fails)

"""

See the full comment at https://github.com/SSSD/sssd/pull/5766#issuecomment-916957933