Revert "continuously rejoin consul servers"

Correct way to fix the recreate issue is to persist the data that the
servers are maintaining. That way they will rejoin the previous nodes.

This is valuable as a safety net but I'd rather prove that it's needed
first, now that the data is persisted on the servers.

This reverts commit 75902d1c16041017cf3bf84efa427359d418ecac.