net/mlx5: remove drop queue function prototypes

[ upstream commit a4af5ee ]

There are some leftovers of removed code - there are
no drop queue handling routines anymore.

Fixes: 78be885 ("net/mlx5: handle drop queues as regular queues")

Signed-off-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>

drivers/net/mlx5/mlx5.h

@@ -1217,8 +1217,6 @@ int mlx5_ctrl_flow(struct rte_eth_dev *dev,
 		   struct rte_flow_item_eth *eth_mask);
 int mlx5_flow_lacp_miss(struct rte_eth_dev *dev);
 struct rte_flow *mlx5_flow_create_esw_table_zero_flow(struct rte_eth_dev *dev);
-int mlx5_flow_create_drop_queue(struct rte_eth_dev *dev);
-void mlx5_flow_delete_drop_queue(struct rte_eth_dev *dev);
 void mlx5_flow_async_pool_query_handle(struct mlx5_dev_ctx_shared *sh,
 				       uint64_t async_id, int status);
 void mlx5_set_query_alarm(struct mlx5_dev_ctx_shared *sh);