staticcheck: pkg/volume/fc, pkg/volume/portworx and pkg/volume/vsphere_volume

Signed-off-by: yuxiaobo <yuxiaobogo@163.com>

hack/.staticcheck_failures

@@ -26,12 +26,10 @@ pkg/volume/awsebs
 pkg/volume/azure_dd
 pkg/volume/azure_file
 pkg/volume/csi
-pkg/volume/fc
 pkg/volume/flexvolume
 pkg/volume/flocker
 pkg/volume/iscsi
 pkg/volume/local
-pkg/volume/portworx
 pkg/volume/quobyte
 pkg/volume/rbd
 pkg/volume/scaleio
@@ -41,7 +39,6 @@ pkg/volume/util/fsquota
 pkg/volume/util/fsquota/common
 pkg/volume/util/operationexecutor
 pkg/volume/util/subpath
-pkg/volume/vsphere_volume
 test/e2e/apps
 test/e2e/autoscaling
 test/e2e/instrumentation/logging/stackdriver

pkg/volume/fc/fc.go

@@ -312,7 +312,6 @@ func (plugin *fcPlugin) ConstructBlockVolumeSpec(podUID types.UID, volumeName, m
 type fcDisk struct {
 	volName string
 	podUID  types.UID
-	portal  string
 	wwns    []string
 	lun     string
 	wwids   []string

pkg/volume/portworx/portworx.go

@@ -383,8 +383,7 @@ func (d *portworxVolumeDeleter) Delete() error {
 
 type portworxVolumeProvisioner struct {
 	*portworxVolume
-	options   volume.VolumeOptions
-	namespace string
+	options volume.VolumeOptions
 }
 
 var _ volume.Provisioner = &portworxVolumeProvisioner{}

pkg/volume/vsphere_volume/vsphere_volume.go

@@ -182,17 +182,11 @@ type vsphereVolume struct {
 	podUID  types.UID
 	// Unique identifier of the volume, used to find the disk resource in the provider.
 	volPath string
-	// Filesystem type, optional.
-	fsType string
-	//diskID for detach disk
-	diskID string
 	// Utility interface that provides API calls to the provider to attach/detach disks.
 	manager vdManager
 	// Mounter interface that provides system calls to mount the global path to the pod local path.
 	mounter mount.Interface
-	// diskMounter provides the interface that is used to mount the actual block device.
-	diskMounter mount.Interface
-	plugin      *vsphereVolumePlugin
+	plugin  *vsphereVolumePlugin
 	volume.MetricsProvider
 }