staging: wilc1000: remove inner block '{}' in handle_remain_on_chan()

Cleanup patch to remove unnecessary inner block {\* *\} in
handle_remain_on_chan().

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>