Some people wish to disable RSS for semi-private blogs, such as your daily thoughts, or a journal of an illness. Of course nothing on the internet is totally private, but if one wishes to do this, then removing RSS and pings would be one of the first steps:
–Remove ping-o-matic and anything from the Pings list in the admin > options
–It is possible to completely delete some of the PHP files in your wordpress root (the ones dealing with feeds only), unfortunately I don’t have a list of safe files to delete, but this would be a handy list if anyone knows.
That said — However, there could be a better way for Josef, if you only want to get Google to prioritize your homepage and not your feedpage. Perhaps you should try the Sitemaps plugin which creates a Google Sitemap, to guide the bot in order of importance.
That’s really just a link to the rss feed. It doesn’t remove the rss feed.
I just tried something. I went into the admin area, under Options > Reading, and I set the number of posts for rss to 0. When I tried to view the feed, I got a 404. So that’s what I would recommend someone do when they want to disable their outgoing rss feeds.
If you want to see the result right away, you may need to delete the files in wp-content/cache