Http option in config.yaml

Actually i am using the nabucasa cloud to connect from remote to my HA instance and i have in my config.yaml the following options:

http:
  ssl_certificate: !secret http_ssl_certificate
  ssl_key: !secret http_ssl_key

duckdns:
  domain: !secret duckdns_domain
  access_token: !secret duckdns_access_token

May i disable the entire http: configuration or do i still need it?
And more deleting the duckdns addon may i disable also the duckdns: options?
Thanks for the eventual helps as i am not so good about those options…

Yes, you can remove all of those if you don’t want to use your DuckDNS hostname any more.

Thanks a lot…