Clean up / remove suffixes from generated StorageClasses and VolumeSnapshotClasses in E2E tests

[chrishenzie]

What would you like to be added:
Suffixes for generated StorageClass and VolumeSnapshotClass objects can be removed since they already have randomly generated names.

kubernetes/test/e2e/storage/testsuites/driveroperations.go

Line 76 in 396b90f

Name: names.SimpleNameGenerator.GenerateName(ns + "-" + suffix),

Why is this needed:
This is a small cleanup to remove an argument that isn't needed (it's hardcoded in callers) and / or repeats the name of the snapshotter in the suffix which can reduce readability:

kubernetes/test/e2e/storage/drivers/csi.go

Lines 163 to 170 in 396b90f

	func (h *hostpathCSIDriver) GetSnapshotClass(config *testsuites.PerTestConfig) *unstructured.Unstructured {
	snapshotter := config.GetUniqueDriverName()
	parameters := map[string]string{}
	ns := config.Framework.Namespace.Name
	suffix := fmt.Sprintf("%s-vsc", snapshotter)
	return testsuites.GetSnapshotClass(snapshotter, parameters, ns, suffix)
	}

/sig storage

[k8s-ci-robot]

@chrishenzie: This issue is currently awaiting triage.

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[chrishenzie]

/sig storage

[chrishenzie]

/remove-kind feature
/kind cleanup

[lala123912]

Can I have a try to fix it?