hack: handle additional cleanup from #1028
hack: handle additional cleanup from #1028

remove the `unset` in the script.

Signed-off-by: Wei Fu <df4176d36abdc6fd0d966de5d5471522668de494@gmail.com>

thaJeztah/containerd,mikebrow/containerd,containerd/containerd,estesp/containerd,mikebrow/containerd,vdemeester/containerd,vdemeester/containerd,dmcgowan/containerd,thaJeztah/containerd,dmcgowan/containerd,estesp/containerd,containerd/containerd