remove mongo

[OriHoch]

now that we get data from clearmash, we need to remove all references to mongo and move to use elasticsearch instead

need to figure out what pitfalls we might have, where we have stuff that relies too much on Mongoisms

Also, do we have data which is in Mongo but not in Elasticsearch? or not in Clearmash?

[OriHoch]

need to check if mongo is used for something else like users

[OriHoch]

we now have postgresql DB for the pipelines (it's more compatible with the pipelines framework)
we should move any remaining data in mongo to postgresql, no point in keeping mongo only for users