staging:rtl8188eu:core Fix remove unneccessary else block

This patch removes the unwanted braces and else statement inside the
function 'SecIsInPMKIDList'

Signed-off-by: Janani Sankara Babu <jananis37@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>