This commit removes all remaining references to cs_comments_service
except the ForumsConfig model. The only purpose of keeping the model
and table around is so that the webapp processes don't start throwing
errors during deployment because they're running the old code for a
few minutes after the database migration has run. We can drop
ForumsConfig and add the drop-table migration after Ulmo is cut.
Also bumps the openedx-forum version to 0.3.7
---------
Co-authored-by: Taimoor Ahmed <taimoor.ahmed@A006-01711.local>
86d9b08b5d