I installed the repositories of KXStudio to enhance my use of Ardour, now I'm no longer using Ardour, I would like to removed them.

I've installed Synaptic Package Manager, so in that I removed kx studio.

With 'sudo apt-get update' though, they still appear. So I guess they are uninstalled but reinstall every time I update?

So I just need to delete the from '/etc/apt/sources.list'. Problem is, they are not there. How does deleting this work on Deepin?

Here are the commands I used to install it http://kxstudio.linuxaudio.org/Repositories

Many thanks