Merge pull request #13239 from mpurg/fix_description_nftables

Remove erroneous line in description

Author: jan-cerny

linux_os/guide/system/network/network-nftables/nftables_ensure_default_deny_policy/rule.yml

@@ -8,7 +8,6 @@ description: |-
    the firewall will accept any packet that is not configured to be denied and the packet will
    continue traversing the network stack.
 
-   {% if 'ubuntu' in product %}
    Run the following commands and verify that base chains contain a policy of DROP.
    <pre>
    $ nft list ruleset | grep 'hook input'