I think i got it.
in my case i installed a bluetooth helicopter. It down loaded the app and than a paired the bluetooth. The Heli broke and i returned it for a refund.
So i deleted the app (not needed anymore). the app was deleted but bluetooth remained. So this is how you do it.
1. go to app that sayes "Downloads"
2. you will see the app you deleted there.
3. delete it or uninstall (can't remember).
4. The blue tooth was gone.
Thanks for the people who looked at this posting.