Disable health checks related to Confluence's internal user directory

[Martin Gerhard Loschwitz]

I have a Confluence health check warning:

"Confluence has an enabled internal user directory, however its administrator account does not exist or is disabled"

Confluence gets all its users from Jira. I removed the administrator account from the internal account simply because I needed the license slot for another user. Ever since, Confluence throws the above error message. 

Is there a way to create an internal user in Confluence that doesn't require a license (but is possibly restricted with regards to content) so that the error mentioned above goes away? Or is there any other solution to work around the problem?

[Reinhard Piltz]

Open the addon administration.
Open Confluence Healthcheck Plugin.
Can be found in the system plugins.

Disable confluence.healthcheck.directory.internal.name

There is no more check on internal administrator

[Reinhard Piltz]

Is just a workaround.
An internal administrator is always better.
Otherwise you could lock yourself