Remove snapshotter argument

[msau42]

There's no reason for snapshotter name to be different from the plugin name. We should remove this argument and make it match the plugin name.
/help

[k8s-ci-robot]

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In response to this:

There's no reason for snapshotter name to be different from the plugin name. We should remove this argument and make it match the plugin name.
/help

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[wackxu]

I will fix this

[msau42]

This was fixed by #103
/close

[k8s-ci-robot]

@msau42: Closing this issue.

In response to this:

This was fixed by #103
/close

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.