staging: rtl8723bs: remove empty files

remove empty files after function move,
hal/odm_RTL8723B.h has only an unused
macro declaration.

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/92cba6beb56150635ab4c7985d733c93fba7fe83.1628329348.git.fabioaiuto83@gmail.com


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