How to remove Task for closed Deal?

How to remove Task for closed Deal?

Hi,

I found an interesting script in your KB which can close all tasks assigned to a Deal. https://www.zoho.com/crm/resources/tips/auto-close-tasks-based-on-deal-stages.html I changed it to remove the tasks instead of close them but it doesn't work. There is a message:
Failed to save the function
  • delete function cant be assigned to variable or used in expression Line Number: 10

Could you advise me what's wrong with that code?
  1. relatedTask = zoho.crm.getRelatedRecords("Tasks","Deals",dealId.toLong(),1,200);
  2. //info relatedTask;

  4. for each task in relatedTask
  5. {
  6. taskID = ifnull(task.get("id"),"");
  7. status = ifnull(task.get("Status"),"");
  8. if(status != "Zakończone")
  9. {
  10. deleteTask = zoho.crm.delete("Tasks",taskID.toLong());
  11. info deleteTask;
  12. }
  13. }