Comment 1 for bug 1828992

Changes that IMHO are reasonable to submit to Debian for the next merge to drop them::
- 9d1894c d/postrm: re-establish systemd-timesyncd on removal (LP: #1764357)
- 6b6b390 - d/postrm: respect policy-rc.d when restoring systemd-timesyncd (LP: #1771994)

Replacing ours delta for networkd-dispatcher:
8f52063b d/control: Suggest networkd-dispatcher
=> We had used Recommends, but I think we can also work with a suggests as it is a rare case to even be a problem.
18fde15f Update sources in response to systemd-networkd events (LP: #1718227).
=> Taken from us as-is

We can drop those this time.

Minor typo in SYNC_IN_CONTAINER comment fixed.