refactor(exporter): remove dead code

internal/certificate.go

@@ -59,7 +59,6 @@ type certificateRef struct {
 	path          string
 	format        certificateFormat
 	certificates  []*parsedCertificate
-	userIDs       []string
 	yamlPaths     []YAMLCertRef
 	kubeSecret    v1.Secret
 	kubeSecretKey string

internal/exporter.go

@@ -39,7 +39,6 @@ type Exporter struct {
 
 	kubeClient   *kubernetes.Clientset
 	listener     net.Listener
-	handler      *http.Handler
 	server       *http.Server
 	isDiscovery  bool
 	secretsCache *cache.Cache