Do not require mongodb-server and postgresql-server in katello.spec
katello rpm requires mongodb-server and postgresql-server,
but since we support external databases there is no need to install them
#2 Updated by Evgeni Golov about 1 year ago
PostgreSQL server requirement is gone since https://github.com/theforeman/foreman-packaging/commit/16e7e366efc1def86761172961a8c09f5273a64d#diff-524a56c89a7dd0e9dbe2443042774384
Not sure about MongoDB.