r8169: remove unused variable

all references got removed by 865c652d6be9929927cabdc54b137b7541eb6612
(r8169: remove non-napi code).

Signed-off-by: Florian Westphal <fwestphal@astaro.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed