How do I get rid of `Advanced Network Configuration` and `Print Settings`?

For some reason, the app nm-connection-editor (Advanced Network Configuration) exists on my GNOME, but I don't even use it. I suspect that it's a part of package nm-applet. I also have system-config-printer (Print Settings, I think?) and system-config-printer-applet, but both of them don't work properly.

I want to remove both these apps, as I don't use them, but they've been introduced by services. How should I proceed?