staging: rtl8723bs: Remove redundant else branches.

This patch fixes the following checkpatch.pl warning:

WARNING: else is not generally useful after a break or return

Signed-off-by: Sevinj Aghayeva <sevinj.aghayeva@gmail.com>
Link: https://lore.kernel.org/r/20220329140904.GA3566@ubuntu


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