Similar to how WordPress generates RSS feeds, it also generates RSS feed links for your pages/posts, comments, tags, etc. You can leave your RSS feeds enabled and still remove the RSS feed links. The purpose of this is to remove additional and probably unused code from your site.
These are sometimes used by 3rd party services so you might want to test it out.
You can easily remove these in the perfmatters plugin by enabling the “Remove Feed Links” option.