staging: r8188eu: remove unnecessary blank lines

Reported by checkpatch:

CHECK: Blank lines aren't necessary before a close brace '}'

Acked_by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Alaa Mohamed <eng.alaamohamedsoliman.am@gmail.com>
Link: https://lore.kernel.org/r/20220404145217.15069-1-eng.alaamohamedsoliman.am@gmail.com


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