reverted some edits

auth/callback.go

@@ -175,11 +175,8 @@ func (m *Manager) handleRequest(cmixMsg format.Message,
 	//  fixme: if a crash occurs before or during the calls, the notification
 	//  will never be sent.
 	cbList := m.requestCallbacks.Get(c.ID)
-	for i:=0;i<len(cbList);i++{
-		cb := cbList[i]
-		jww.INFO.Printf("callback type: %T", cb)
-		jww.INFO.Printf("printed internal callback: %#v", cb)
-		rcb := (cb).([]interface{})[0].(interfaces.RequestCallback)
+	for _, cb := range cbList {
+		rcb := cb.(interfaces.RequestCallback)
 		go rcb(c, msg)
 	}
 	return