Correct me if I’m wrong, but I do not believe there is any capability within the Netlify administrative UI to “Unlink the site repository”. This is especially useful if you want to (for whatever reason) switch to using “Drag & Drop” deployment.
When I have needed to perform this in the past, I have done so by creating a new secondary site instance and manually migrating any applicable site configuration.
Hi, @nathanmartin. I did reply in the other thread as well with this information and want to make sure I replied here as well.
The API endpoint was created to support a UI method to do this but it was released before the UI changes have been. In the meantime, please do feel free to use the API itself to unlink repos while the work to update the web UI to support that API endpoint continues.