staging: rtl8723bs: remove BTC_PRINT macro definitions

remove unused BTC_PRINT macro definitions.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/0f0129063880553001a2c1d8272d10079abc7132.1619794331.git.fabioaiuto83@gmail.com


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