Remove stale kdc requests info files when upgrading IPA server
Added removing of stale /var/lib/sss/pubconf/kdcinfo.* and /var/lib/sss/pubconf/kpasswdinfo.* files generated by SSSD during IPA server upgrade.
Fixes: https://pagure.io/freeipa/issue/7578
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>