STOR-2636: add localvolume fsTypes tests

[Phaow]

• Add localvolume fsTypes tests.
• Switch to use gp3 volume type to reduce storage costs(xref: https://docs.aws.amazon.com/emr/latest/ManagementGuide/emr-plan-storage-compare-volume-types.html).
• Use t.Logf to fix lint check.
• Clean up unused vars cleanupRetryInterval and cleanupTimeout .

$ go test -timeout 0 ./test/e2e/... -root=/go/src/github.com/openshift/local-storage-operator -kubeconfig=/tmp/kubeconfig-1607829904 -v -parallel=1
...
--- PASS: TestLocalStorage (1243.00s)
    --- PASS: TestLocalStorage/LocalVolumeDiscovery (315.09s)
    --- PASS: TestLocalStorage/LocalVolumeSet (267.64s)
    --- PASS: TestLocalStorage/LocalVolume (587.50s)
        --- PASS: TestLocalStorage/LocalVolume/default-filesystem-with-tolerations (116.35s)
        --- PASS: TestLocalStorage/LocalVolume/ext4-filesystem (48.12s)
        --- PASS: TestLocalStorage/LocalVolume/xfs-filesystem (60.14s)
        --- PASS: TestLocalStorage/LocalVolume/block-mode (60.16s)
PASS
ok  	github.com/openshift/local-storage-operator/test/e2e	1243.026s

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[openshift-ci]

@Phaow: all tests passed!

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[openshift-ci-robot]

@Phaow: This pull request references STOR-2636 which is a valid jira issue.

Details

In response to this:

• Add localvolume fsTypes tests.
• Switch to use gp3 volume type to reduce storage costs(xref: https://docs.aws.amazon.com/emr/latest/ManagementGuide/emr-plan-storage-compare-volume-types.html).
• Use t.Logf to fix lint check.
• Clean up unused vars cleanupRetryInterval and cleanupTimeout .

$ go test -timeout 0 ./test/e2e/... -root=/go/src/github.com/openshift/local-storage-operator -kubeconfig=/tmp/kubeconfig-1607829904 -v -parallel=1
...
--- PASS: TestLocalStorage (1243.00s)
   --- PASS: TestLocalStorage/LocalVolumeDiscovery (315.09s)
   --- PASS: TestLocalStorage/LocalVolumeSet (267.64s)
   --- PASS: TestLocalStorage/LocalVolume (587.50s)
       --- PASS: TestLocalStorage/LocalVolume/default-filesystem-with-tolerations (116.35s)
       --- PASS: TestLocalStorage/LocalVolume/ext4-filesystem (48.12s)
       --- PASS: TestLocalStorage/LocalVolume/xfs-filesystem (60.14s)
       --- PASS: TestLocalStorage/LocalVolume/block-mode (60.16s)
PASS
ok  	github.com/openshift/local-storage-operator/test/e2e	1243.026s

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[Phaow]

Hello @dobsonj @mpatlasov , could you help take a look when you get a chance? Thank you! ^^

[Phaow]

/assign @dobsonj @mpatlasov