I have uninstalled Avid Pro Tools on my MacBook using the provided uninstallers from Avid and the program is gone except the marked device shown below.
did this some time ago, by disabling SIP, rebooting, finding the errant file (you can use something like find any file, or perhaps google for the pro tools driver location).
find that file, delete it. re-enable SIP, reboot. fun stuff... but at least, do-able.