staging: wilc1000: remove inner block {} and resetting of mode variable

Cleanup fixes to remove the uncessary inner block { /* */ } and setting
of 'mode' variable.

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