staging: rtl8723bs: remove unnecessary bracks

remove unnecessary bracks in if-else blocks

Signed-off-by: Fabio Aiuto <fabioaiuto83@gmail.com>
Link: https://lore.kernel.org/r/812e5e0dcb78e49568276237b68dc6f9632c198d.1618064274.git.fabioaiuto83@gmail.com


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