Description of problem:

Since katello-agent feature no longer exists, the qpid and qdrouterd services also do not exist. Hence the reference to port 5646 and 5647 should be removed from the installation guide of Satellite and Capsule 6.16

How reproducible:

Always

Is this issue a regression from an earlier version:

Yes

Steps to Reproduce:

1. Open Satellite 6.16 Connected\Disconnected Installation doc and Capsule 6.16 installation doc

2. Navigate to The "Ports and Firewall requirements" chapter and take a look at the firewall-cmd command suggested afterwards. 

Actual behavior:

For satellite docs

firewall-cmd \
--add-port="5647/tcp" \
--add-port="8000/tcp" \
--add-port="9090/tcp"

For capsule doc

firewall-cmd --add-port="5646/tcp"

firewall-cmd \
--add-port="5647/tcp" \
--add-port="8000/tcp" \
--add-port="9090/tcp"

Expected behavior:

We should not suggest opening any unnecessary ports in the firewall i.e. 5646 and 5647

Business Impact / Additional info:

NA