net/mlx5: Remove VLAN insertion fields from WQE Ether segment

Now that the driver no longer uses VLAN TX insertion via the WQE
Ethernet segment, the related fields and flags can be removed.

Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1757574619-604874-2-git-send-email-tariqt@nvidia.com
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

Author: cjubran

include/linux/mlx5/qp.h

@@ -237,13 +237,11 @@ enum {
 };
 
 enum {
-	MLX5_ETH_WQE_SVLAN              = 1 << 0,
 	MLX5_ETH_WQE_TRAILER_HDR_OUTER_IP_ASSOC = 1 << 26,
 	MLX5_ETH_WQE_TRAILER_HDR_OUTER_L4_ASSOC = 1 << 27,
 	MLX5_ETH_WQE_TRAILER_HDR_INNER_IP_ASSOC = 3 << 26,
 	MLX5_ETH_WQE_TRAILER_HDR_INNER_L4_ASSOC = 1 << 28,
 	MLX5_ETH_WQE_INSERT_TRAILER     = 1 << 30,
-	MLX5_ETH_WQE_INSERT_VLAN        = 1 << 15,
 };
 
 enum {
@@ -275,10 +273,6 @@ struct mlx5_wqe_eth_seg {
 				DECLARE_FLEX_ARRAY(u8, data);
 			};
 		} inline_hdr;
-		struct {
-			__be16 type;
-			__be16 vlan_tci;
-		} insert;
 		__be32 trailer;
 	};
 };