net/mlx5: Remove unused ctx variables

Remove mlx5_priv.ctx_list and ctx_lock which are no longer used after
commit 601c10c89c ("net/mlx5: Delete custom device management logic").

Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

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

@@ -1603,8 +1603,6 @@ int mlx5_mdev_init(struct mlx5_core_dev *dev, int profile_idx)
 	int err;
 
 	memcpy(&dev->profile, &profile[profile_idx], sizeof(dev->profile));
-	INIT_LIST_HEAD(&priv->ctx_list);
-	spin_lock_init(&priv->ctx_lock);
 	lockdep_register_key(&dev->lock_key);
 	mutex_init(&dev->intf_state_mutex);
 	lockdep_set_class(&dev->intf_state_mutex, &dev->lock_key);

include/linux/mlx5/driver.h

@@ -606,8 +606,6 @@ struct mlx5_priv {
 	struct list_head        pgdir_list;
 	/* end: alloc staff */
 
-	struct list_head        ctx_list;
-	spinlock_t              ctx_lock;
 	struct mlx5_adev       **adev;
 	int			adev_idx;
 	int			sw_vhca_id;