Drop unlabeled test lane

[kannon92]

What would you like to be added:

https://testgrid.k8s.io/sig-node-cri-o#ci-crio-cgroupv1-node-e2e-unlabelled

These jobs are a grabbag of all incorrectly labeled tests. We should label these tests and eventually drop this test lane.

Why is this needed:

Many of these tests could be considered conformance and having a non standard labeling is a bit confusing.

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