staging: rtl8723bs: Remove unused macros in Hal8723BReg.h

Remove unused macros.

Signed-off-by: Philipp Hortmann <[email protected]>
Link: https://lore.kernel.org/r/e01262b91c33d7f0b8370f74d95d688d7c813655.1720245061.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: Philipp Hortmann