Changes

open5gs configs: remove comments

A lot of these comments got outdated with recent config changes
in the related PR. Instead of syncing the comments again and having a
big diff, remove the comments once and then only have diffs of
actual config changes in future patches. This will make it easier to
maintain these configs.

Related: https://github.com/open5gs/open5gs/pull/2739
Change-Id: I67c2a198b9682e15e23a466380e62a976e6236cd