Revert "wifi: libertas: cap SSID len in lbs_associate()"

This reverts commit 30fc1555 which is
commit c786794b upstream.

It breaks the Android kernel build and can be brought back in the future
in an safe way if it is really needed.

Bug: 161946584
Change-Id: I508685386f72faba7625c06e5c9098a540fc4f54
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>