Description of problem:

After the introduction of Pulp 3 in Satellite 6.10 and above, there is no crane plugin in pulp3 and hence the docker registry is also not exposed via port 5000

However, if we are to go to Administer --> Settings --> Content, We still can see that option available and set.

Version-Release number of selected component (if applicable):

Satellite 6.10 and 6.11

How reproducible:
Always

Steps to Reproduce:
1. Install a Satellite 6.11
2. Either go to Satellite UI --> Administer --> Settings --> Content and check for "Pulp Docker registry port"

or run this command in Satellite via hammer:

1. hammer settings info --name pulp_docker_registry_port

Actual results:

1. hammer settings info --name pulp_docker_registry_port
   Id: pulp_docker_registry_port
   Name: pulp_docker_registry_port
   Description: The port used by Pulp Crane to provide Docker Registries
   Category: Content
   Settings type: integer
   Value: 5000

Expected results:

If my assumption is correct, this setting should no longer be present or its Pulp3 alternate should be present there.

Additional info:

I see that in Katello itself it is still defined.

https://github.com/Katello/katello/blob/master/lib/katello/plugin.rb#L502-L506