In 7.1 (SERVER-63983) we stopped persisting and parsing the "partitioned" flag in "config.databases" entries but we never actually did the work to remove this flag from the already persisted metadata in upgrade.

So we could have clusters that came from earlier version that still have this flag in "config.databases", if in the future we will decide to re-introduce a flag with the same name we will have troubles due to the naming conflict.

The goal of this ticket is either to document this field in type_database.idl or properly remove the deprecated flag on FCV upgrade.