bonding: do not cancel works in bond_uninit()

bonding: do not cancel works in bond_uninit()

Bonding initializes these works in bond_open() and cancels in bond_close(),
thus in bond_uninit() they are already canceled but may be unitialized yet.

Signed-off-by: Konstantin Khlebnikov <[email protected]>
Cc: Nikolay Aleksandrov <[email protected]>
Cc: Jay Vosburgh <[email protected]>
Cc: Andy Gospodarek <[email protected]>
Cc: [email protected]
Signed-off-by: David S. Miller <[email protected]>