staging: wilc1000: Simplify code by eliminating else block

Remove else block here as it is not useful after the return statement in the corresponding if block. This simplifies code. This issue was identified by checkpatch.

Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>