ibmvnic: remove unused spinlock_t stats_lock definition

stats_lock is no longer used. So remove it.
Signed-off-by: Lijun Pan <lijunp213@gmail.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/ibm/ibmvnic.c

@@ -5295,8 +5295,6 @@ static int ibmvnic_probe(struct vio_dev *dev, const struct vio_device_id *id)
 	netdev->ethtool_ops = &ibmvnic_ethtool_ops;
 	SET_NETDEV_DEV(netdev, &dev->dev);
 
-	spin_lock_init(&adapter->stats_lock);
-
 	INIT_WORK(&adapter->ibmvnic_reset, __ibmvnic_reset);
 	INIT_DELAYED_WORK(&adapter->ibmvnic_delayed_reset,
 			  __ibmvnic_delayed_reset);

drivers/net/ethernet/ibm/ibmvnic.h

@@ -987,7 +987,6 @@ struct ibmvnic_adapter {
 	struct ibmvnic_statistics stats;
 	dma_addr_t stats_token;
 	struct completion stats_done;
-	spinlock_t stats_lock;
 	int replenish_no_mem;
 	int replenish_add_buff_success;
 	int replenish_add_buff_failure;