ionic: fix unused assignment

Remove an unused initialized value.

Fixes: 7e4d4759 ("ionic: replay filters after fw upgrade")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/pensando/ionic/ionic_rx_filter.c

@@ -26,7 +26,7 @@ void ionic_rx_filter_replay(struct ionic_lif *lif)
 	struct hlist_head *head;
 	struct hlist_node *tmp;
 	unsigned int i;
-	int err = 0;
+	int err;
 
 	ac = &ctx.cmd.rx_filter_add;