Fix useless err parameter

cmd/registration.go

@@ -61,7 +61,7 @@ func main() {
 		log.Fatalf("error loading configuration: %v", err)
 	}
 
-	sessionPath, sessionAuthKey, sessionEncKey := configureSessionParameters(config, err)
+	sessionPath, sessionAuthKey, sessionEncKey := configureSessionParameters(config)
 	services.InitSessionStore(logger, sessionPath, sessionAuthKey, sessionEncKey)
 
 	tlsClientConfig := &tls.Config{
@@ -83,6 +83,9 @@ func main() {
 	services.AddMessages(ctx)
 
 	adminURL, err := url.Parse(config.MustString("hydra.admin.url"))
+	if err != nil {
+		log.Panicf("could not parse Hydra admin URL: %v", err)
+	}
 	tlsClientTransport := &http.Transport{TLSClientConfig: tlsClientConfig}
 	httpClient := &http.Client{Transport: tlsClientTransport}
 	adminClient := hydra.New(openapiClient.NewWithClient(
@@ -138,7 +141,7 @@ func main() {
 	startServer(ctx, handlerChain, logger, config)
 }
 
-func configureSessionParameters(config *koanf.Koanf, err error) (string, []byte, []byte) {
+func configureSessionParameters(config *koanf.Koanf) (string, []byte, []byte) {
 	sessionPath := config.MustString("session.path")
 	sessionAuthKey, err := base64.StdEncoding.DecodeString(config.String("session.auth-key"))
 	if err != nil {