net/mlx5e: remove unused list in arfs

This is never used, and probably something that was intended to be used
before per-protocol hash tables were chosen instead.
Signed-off-by: NAnisse Astier <anisse@astier.eu>
Reviewed-by: NLeon Romanovsky <leonro@nvidia.com>
Signed-off-by: NSaeed Mahameed <saeedm@nvidia.com>

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

@@ -57,7 +57,6 @@ struct mlx5e_arfs_tables {
 	struct arfs_table arfs_tables[ARFS_NUM_TYPES];
 	/* Protect aRFS rules list */
 	spinlock_t                     arfs_lock;
-	struct list_head               rules;
 	int                            last_filter_id;
 	struct workqueue_struct        *wq;
 };
@@ -376,7 +375,6 @@ int mlx5e_arfs_create_tables(struct mlx5e_flow_steering *fs,
 		return -ENOMEM;
 
 	spin_lock_init(&arfs->arfs_lock);
-	INIT_LIST_HEAD(&arfs->rules);
 	arfs->wq = create_singlethread_workqueue("mlx5e_arfs");
 	if (!arfs->wq)
 		goto err;