bonding: 3ad: Remove unused declaration bond_3ad_update_lacp_active()

This is not used since commit 3a755cd8 ("bonding: add new option lacp_active")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20230726143816.15280-1-yuehaibing@huawei.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>