To disconnect and remove a Wordpress site from the "Publish" menu of your Airstory account follow these steps:
- From your Wordpress admin site, find "Users" along the left-hand menu.
- Select "Your Profile".
- Scroll to the bottom of the "Profile" page to find "Airstory Configuration".
- Select "Disconnect from Airstory".
- Click on "Update Profile".
Your Wordpress blog should disappear from your "Publish" menu immediately. If after making the changes to your WP-admin, you still see the site in your Airstory account please refresh your Airstory connection in order for the changes take effect.
If after attempting the above-noted steps you still see the WP site under your "Publish" menu, please open a support request with https://wordpress.org/support/plugin/airstory.