net/mlx5e: Remove leftover declaration

This function was removed in the cited commit below.

Fixes: 13e509a4 ("net/mlx5e: Remove leftover code from the PF netdev being uplink rep")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/en_rep.h

@@ -183,7 +183,6 @@ struct mlx5e_rep_sq {
 	struct list_head	 list;
 };
 
-void *mlx5e_alloc_nic_rep_priv(struct mlx5_core_dev *mdev);
 void mlx5e_rep_register_vport_reps(struct mlx5_core_dev *mdev);
 void mlx5e_rep_unregister_vport_reps(struct mlx5_core_dev *mdev);
 bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv);