Hmmm an interesting problem . . .
Since these are USB drivers, click the link below to download a small free utility called USBDeview
The download link is near the bottom in the Feedback section
I use it to clean up USB drivers on my system all the time . . .
Just unzip the download, then right click USBDeview and choose Run as Administrator
Hopefully you will find those drivers with that tool, then right click the driver and choose 'Uninstall the selected Device'