staging: r8188eu: hal data's customer id is always 0

CustomerID in struct hal_data_8188e is never set, it remains at the
default value 0.

Remove CustomerID and fix the two places where it was used.

Acked-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20211006090949.1694-2-martin@kaiser.cx


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>