Description of problem:

Reading the official https://access.redhat.com/documentation/en-us/red_hat_satellite/6.15/html-single/upgrading_connected_red_hat_satellite_to_6.15/index#upgrad[%E2%80%A6]nected

There is a step 14. "Optional: If you use custom repositories, ensure that you enable these custom repositories after the upgrade completes."

https://github.com/theforeman/foreman-documentation/pull/436 is where it was added upstream. But that's when the Satellite guide was open sourced so it's been there even longer than that. 

Expected behavior:

This step can be removed as it is no longer needed.