Remove databases/mongodb-devel. It was older than the non -devel and was
not going to be updated by the maintainer.
Remove conflicts that no longer apply in databases/mongodb.
Submitted by: wxs@
Approved by: ivoras@ (maintainer of databases/mongodb-devel)
Mongo (from "humongous") is a high-performance, open source,
schema-free, document-oriented database. A common name in the
PR: ports/140257 
Submitted by: Ivan Voras <ivoras@FreeBSD.org> 
Mirko Zinn <email@example.com>