staging: rtl8723bs: remove unnecessary parenthesis

Remove extra parenthesis in conditional statement in rtw_ioctl_set.
Issue found by checkpatch.

Signed-off-by: Emily Peri <eperi1024@gmail.com>
Link: https://lore.kernel.org/r/a08a440eabddd8e78d045ca9898a415d81f6f6d7.1666230736.git.eperi1024@gmail.com


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