Fix linter exemptions in golint

We were having issues with golint not properly reporting declaration of functions
without proper documentation (comments). This is due to a config with golangci.

See: https://github.com/golangci/golangci-lint/issues/456

cmd/virtual-kubelet/internal/commands/root/tracing_register.go

@@ -19,7 +19,7 @@ import (
 	"go.opencensus.io/trace"
 )
 
-type TracingExporterOptions struct {
+type TracingExporterOptions struct { // nolint: golint
 	Tags        map[string]string
 	ServiceName string
 }

cmd/virtual-kubelet/internal/provider/mock/mock.go

@@ -328,7 +328,7 @@ func (p *MockProvider) GetPods(ctx context.Context) ([]*v1.Pod, error) {
 	return pods, nil
 }
 
-func (p *MockProvider) ConfigureNode(ctx context.Context, n *v1.Node) {
+func (p *MockProvider) ConfigureNode(ctx context.Context, n *v1.Node) { // nolint:golint
 	ctx, span := trace.StartSpan(ctx, "mock.ConfigureNode") // nolint:staticcheck,ineffassign
 	defer span.End()
 

cmd/virtual-kubelet/internal/provider/store.go

@@ -13,7 +13,7 @@ type Store struct {
 	ls map[string]InitFunc
 }
 
-func NewStore() *Store {
+func NewStore() *Store { // nolint:golint
 	return &Store{
 		ls: make(map[string]InitFunc),
 	}
@@ -71,4 +71,4 @@ type InitConfig struct {
 	ResourceManager   *manager.ResourceManager
 }
 
-type InitFunc func(InitConfig) (Provider, error)
+type InitFunc func(InitConfig) (Provider, error) // nolint:golint

cmd/virtual-kubelet/internal/provider/types.go

@@ -7,7 +7,7 @@ const (
 	OperatingSystemWindows = "Windows"
 )
 
-type OperatingSystems map[string]bool
+type OperatingSystems map[string]bool // nolint:golint
 
 var (
 	// ValidOperatingSystems defines the group of operating systems
@@ -18,7 +18,7 @@ var (
 	}
 )
 
-func (o OperatingSystems) Names() []string {
+func (o OperatingSystems) Names() []string { // nolint:golint
 	keys := make([]string, 0, len(o))
 	for k := range o {
 		keys = append(keys, k)