staging: rtl8723bs: remove unused ASSERT macro

remove unused do nothing ASSERT macro definition.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/f13bc57cc3a821c40443dddc38258b87962774a7.1619794331.git.fabioaiuto83@gmail.com


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