linux-phytec-ti

tipc: remove unused tipc_link_is_active

tipc_link_is_active is no longer used and can be removed.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>