bluetooth: ng_ubt_rtl/rtlbtfw: remove duplicate entry in device table

Remove the single 8822CU entry in all three places.
It seems the only entry referencing a USB device. The same device is
listed with the 8822CE devices.

Reviewed by: wulf
Differential Revision: https://reviews.freebsd.org/D52324

(cherry picked from commit 0ee6e36ea9b2dd959b0fb9f04ab98a01f93729fc)