bonding: remove no longer relevant vlan warnings

These warnings are no longer relevant. Even when last slave is
removed, there is a valid address assigned to bond (random).
The correct functionality of vlans is ensured by maintaining unicast
list in vlan_sync_address().
Suggested-by: NJay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: NJiri Pirko <jiri@resnulli.us>
Acked-by: NVeaceslav Falico <vfalico@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/bonding/bond_main.c

@@ -1754,13 +1754,6 @@ static int __bond_release_one(struct net_device *bond_dev,
 	if (!bond_has_slaves(bond)) {
 		bond_set_carrier(bond);
 		eth_hw_addr_random(bond_dev);
-
-		if (vlan_uses_dev(bond_dev)) {
-			pr_warn("%s: Warning: clearing HW address of %s while it still has VLANs\n",
-				bond_dev->name, bond_dev->name);
-			pr_warn("%s: When re-adding slaves, make sure the bond's HW address matches its VLANs\n",
-				bond_dev->name);
-		}
 	}
 
 	unblock_netpoll_tx();