staging: rtl8187se: Delete braces are not necessary in ieee80211/ieee80211_softmac.c

Delete braces are not necessary for single statement blocks and fix
coding style in these lines when It is necessary.

Fix checkpatch.pl warning:
WARNING: braces {} are not necessary for single statement blocks

Signed-off-by: Ana Rey <anarey@gmail.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>