What is touchosc and how do I turn it off?

Is it this?

There is a MIDI device called touchosc and it is connecting to any new device. It is getting in my way and I cannot turn it off

It belongs to the package amidithru that is “documented” here

Can I safely get rid of it?

I need to get rid of modep-touchosc2midi

Yes, just uninstall the package.