net/mlx5: Remove the flag MLX5_INTERFACE_STATE_SHUTDOWN

MLX5_INTERFACE_STATE_SHUTDOWN is not used in the code.

Fixes: 5fc7197d3a25 ("net/mlx5: Add pci shutdown callback")
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/main.c

@@ -1563,8 +1563,6 @@ static void shutdown(struct pci_dev *pdev)
 	int err;
 
 	dev_info(&pdev->dev, "Shutdown was called\n");
-	/* Notify mlx5 clients that the kernel is being shut down */
-	set_bit(MLX5_INTERFACE_STATE_SHUTDOWN, &dev->intf_state);
 	err = mlx5_try_fast_unload(dev);
 	if (err)
 		mlx5_unload_one(dev, priv, false);

include/linux/mlx5/driver.h

@@ -674,7 +674,6 @@ enum mlx5_device_state {
 
 enum mlx5_interface_state {
 	MLX5_INTERFACE_STATE_UP = BIT(0),
-	MLX5_INTERFACE_STATE_SHUTDOWN = BIT(1),
 };
 
 enum mlx5_pci_status {