How do you remove Mobile Broadband Networks from the Gnome menu bar?

I currently have a gnome menu that looks like this: Can anyone tell me how I can remove the 3/4G mobile networks? I have an inbuilt mobile network device, which I've never used and would rather not see and recently the other 2 devices have appeared.They may have been plugged in to my laptop at some point. I've checked and they don't appear in

/etc/NetworkManager

, and I don't see any config or extension that can help me remove them. They do appear in the NetworkManager applet, but the remove button is greyed out.