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:

   # hammer settings info --name pulp_docker_registry_port


Actual results:

# 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