Removing authorized apps?

I have forgotten how to do it, or perhaps the app I used no longer exists. Would someone remind me how I can do this? I am sure many of us have authorized apps that no longer work with Steem. There is no reason for them to remain authorized. I would like to remove some.
@steemchiller I looked around on SteemWorld, but maybe I missed it. Do you have such a feature?

Thanks in advance!