neighbor: Remove state and flags arguments to neigh_del

neigh_del now only has 1 caller, and the state and flags arguments
are both 0. Remove them and simplify neigh_del.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2018-12-11 18:57:23 -07:00 • committed by David S. Miller
commit 7e6f182bec