scan: wps: remove useless string length checks

If we're going to print using %*s, then there's no need
to check the length first - zero is fine and results in
no memory access.

Change-Id: I68a4ebd0be8e5c03670d475fe664597b6046df39
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
1 file changed