staging: rtl8188eu: remove braces from single statement if block

Remove braces from single statement if block to comply with kernel
coding style. Reported by checkpatch.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20191013131249.34422-1-straube.linux@gmail.com


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