Remove useless get volume stat field

test/e2e/storage/csimock/csi_node_volume_health.go

@@ -93,7 +93,6 @@ var _ = utils.SIGDescribe("CSI Mock Node Volume Health", feature.CSIVolumeHealth
 		for _, t := range tests {
 			test := t
 			ginkgo.It(test.name, func(ctx context.Context) {
-				// Hooks appear to be required for enableNodeVolumeStat.
 				m.init(ctx, testParameters{
 					registerDriver:            true,
 					enableNodeVolumeCondition: test.nodeVolumeConditionRequired,

test/e2e/storage/drivers/csi-test/mock/service/service.go

@@ -55,7 +55,6 @@ type Config struct {
 	DriverName                  string
 	AttachLimit                 int64
 	NodeExpansionRequired       bool
-	NodeVolumeStatRequired      bool
 	NodeVolumeConditionRequired bool
 	VolumeMountGroupRequired    bool
 	DisableControllerExpansion  bool

test/e2e/storage/drivers/csi.go

@@ -306,7 +306,6 @@ type mockCSIDriver struct {
 	requiresRepublish             *bool
 	fsGroupPolicy                 *storagev1.FSGroupPolicy
 	enableVolumeMountGroup        bool
-	enableNodeVolumeStat          bool
 	enableNodeVolumeCondition     bool
 	embedded                      bool
 	calls                         MockCSICalls
@@ -356,7 +355,6 @@ type CSIMockDriverOpts struct {
 	EnableNodeExpansion           bool
 	EnableSnapshot                bool
 	EnableVolumeMountGroup        bool
-	EnableNodeVolumeStat          bool
 	EnableNodeVolumeCondition     bool
 	TokenRequests                 []storagev1.TokenRequest
 	RequiresRepublish             *bool
@@ -589,7 +587,6 @@ func (m *mockCSIDriver) PrepareTest(ctx context.Context, f *framework.Framework)
 			DriverName:                  "csi-mock-" + f.UniqueName,
 			AttachLimit:                 int64(m.attachLimit),
 			NodeExpansionRequired:       m.enableNodeExpansion,
-			NodeVolumeStatRequired:      m.enableNodeVolumeStat,
 			NodeVolumeConditionRequired: m.enableNodeVolumeCondition,
 			VolumeMountGroupRequired:    m.enableVolumeMountGroup,
 			EnableTopology:              m.enableTopology,