chore(linters): Enable unused-receiver rule for revive

.golangci.yml

@@ -318,6 +318,7 @@ linters-settings:
       - name: unnecessary-stmt
       - name: unreachable-code
       - name: unused-parameter
+      - name: unused-receiver
       - name: var-declaration
       - name: var-naming
       - name: waitgroup-by-value

plugins/inputs/processes/processes_windows.go

@@ -16,7 +16,7 @@ func (e *Processes) Init() error {
 	return nil
 }
 
-func (e *Processes) Gather(_ telegraf.Accumulator) error {
+func (*Processes) Gather(telegraf.Accumulator) error {
 	return nil
 }
 

plugins/inputs/temp/temp_notlinux.go

@@ -25,7 +25,7 @@ func (t *Temperature) Init() error {
 	return nil
 }
 
-func (t *Temperature) Gather(acc telegraf.Accumulator) error {
+func (*Temperature) Gather(acc telegraf.Accumulator) error {
 	temps, err := sensors.SensorsTemperatures()
 	if err != nil {
 		var sensorsWarnings *sensors.Warnings

plugins/inputs/win_eventlog/win_eventlog.go

@@ -113,7 +113,7 @@ func (w *WinEventLog) Stop() {
 }
 
 func (w *WinEventLog) GetState() interface{} {
-	bookmarkXML, err := w.renderBookmark(w.bookmark)
+	bookmarkXML, err := renderBookmark(w.bookmark)
 	if err != nil {
 		w.Log.Errorf("State-persistence failed, cannot render bookmark: %v", err)
 		return ""
@@ -381,7 +381,7 @@ func (w *WinEventLog) fetchEvents(subsHandle EvtHandle) ([]Event, error) {
 	return events, evterr
 }
 
-func (w *WinEventLog) renderBookmark(bookmark EvtHandle) (string, error) {
+func renderBookmark(bookmark EvtHandle) (string, error) {
 	var bufferUsed, propertyCount uint32
 
 	buf := make([]byte, bufferSize)

plugins/inputs/win_perf_counters/performance_query.go

@@ -69,7 +69,7 @@ type performanceQueryImpl struct {
 
 type performanceQueryCreatorImpl struct{}
 
-func (m performanceQueryCreatorImpl) NewPerformanceQuery(_ string, maxBufferSize uint32) PerformanceQuery {
+func (performanceQueryCreatorImpl) NewPerformanceQuery(_ string, maxBufferSize uint32) PerformanceQuery {
 	return &performanceQueryImpl{maxBufferSize: maxBufferSize}
 }
 
@@ -181,7 +181,7 @@ func (m *performanceQueryImpl) ExpandWildCardPath(counterPath string) ([]string,
 }
 
 // GetFormattedCounterValueDouble computes a displayable value for the specified counter
-func (m *performanceQueryImpl) GetFormattedCounterValueDouble(hCounter pdhCounterHandle) (float64, error) {
+func (*performanceQueryImpl) GetFormattedCounterValueDouble(hCounter pdhCounterHandle) (float64, error) {
 	var counterType uint32
 	var value pdhFmtCountervalueDouble
 
@@ -287,7 +287,7 @@ func (m *performanceQueryImpl) CollectDataWithTime() (time.Time, error) {
 	return mtime, nil
 }
 
-func (m *performanceQueryImpl) IsVistaOrNewer() bool {
+func (*performanceQueryImpl) IsVistaOrNewer() bool {
 	return PdhAddEnglishCounterSupported()
 }
 

plugins/inputs/win_perf_counters/win_perf_counters.go

@@ -153,7 +153,7 @@ func extractCounterInfoFromCounterPath(counterPath string) (computer string, obj
 	return computer, object, instance, counter, nil
 }
 
-func (m *WinPerfCounters) SampleConfig() string {
+func (*WinPerfCounters) SampleConfig() string {
 	return sampleConfig
 }
 

plugins/inputs/win_services/win_services.go

@@ -89,7 +89,7 @@ func (m *winSvcMgr) ListServices() ([]string, error) {
 type mgProvider struct {
 }
 
-func (rmr *mgProvider) Connect() (WinServiceManager, error) {
+func (*mgProvider) Connect() (WinServiceManager, error) {
 	h, err := windows.OpenSCManager(nil, nil, windows.GENERIC_READ)
 	if err != nil {
 		return nil, err

plugins/inputs/win_services/win_services_test.go

@@ -39,7 +39,7 @@ type FakeSvcMgr struct {
 	testData testData
 }
 
-func (m *FakeSvcMgr) Disconnect() error {
+func (*FakeSvcMgr) Disconnect() error {
 	return nil
 }
 
@@ -77,7 +77,7 @@ type FakeWinSvc struct {
 	testData serviceTestInfo
 }
 
-func (m *FakeWinSvc) Close() error {
+func (*FakeWinSvc) Close() error {
 	return nil
 }
 func (m *FakeWinSvc) Config() (mgr.Config, error) {