remove factory function

notify/factory.go

@@ -59,12 +59,6 @@ type NotificationChannel interface {
 	notify.ResolvedSender
 }
 
-func Factory(receiverType string) (func(receivers.FactoryConfig) (NotificationChannel, error), bool) {
-	receiverType = strings.ToLower(receiverType)
-	factory, exists := receiverFactories[receiverType]
-	return factory, exists
-}
-
 // wrap wraps the notifier's factory errors with receivers.ReceiverInitError
 func wrap[T NotificationChannel](f func(fc receivers.FactoryConfig) (T, error)) func(receivers.FactoryConfig) (NotificationChannel, error) {
 	return func(fc receivers.FactoryConfig) (NotificationChannel, error) {
@@ -170,14 +164,16 @@ func (ib IntegrationsBuilder) buildReceiverIntegration(r *GrafanaReceiver, tmpl
 			Err:      err,
 		}
 	}
-	receiverFactory, exists := Factory(r.Type)
+
+	receiverType := strings.ToLower(r.Type)
+	factory, exists := receiverFactories[receiverType]
 	if !exists {
 		return nil, InvalidReceiverError{
 			Receiver: r,
 			Err:      fmt.Errorf("notifier %s is not supported", r.Type),
 		}
 	}
-	n, err := receiverFactory(factoryConfig)
+	n, err := factory(factoryConfig)
 	if err != nil {
 		return nil, InvalidReceiverError{
 			Receiver: r,