[SSSD] [sssd PR#682][comment] DYNDNS: Drop support for legacy NSUPDATE

[jhrozek]

URL: https://github.com/SSSD/sssd/pull/682
Title: #682: DYNDNS: Drop support for legacy NSUPDATE

jhrozek commented:
"""
* master: ed476c870674d7fec3e5b0bb3176f83155601163
"""

See the full comment at https://github.com/SSSD/sssd/pull/682#issuecomment-436004528