af_unix: remove unix_iter_state
As pointed out by Michael Tokarev , struct unix_iter_state is no longer needed. Suggested-by: NMichael Tokarev <mjt@tls.msk.ru> Signed-off-by: NEric Dumazet <edumazet@google.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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