Deleting Old RSS Page

I’m trying to figure out how to completely delete an old RSS feed page, not just disable the RSS feed. I’ve deleted the page from WordPress itself but the page is still there. It’s an old podcast page from a .info site that was being forwarded to a .com, but now we’ve rebranded and had a new website done under the .com itself. We want to use that webpage url for the new podcast, but it’s been taken because of the domain forwarder we had before. Is there any way to just pull that page entirely so I can start over and put the new feed in the right place?