refactor: remove unnecessary code
diff --git a/erpnext/accounts/doctype/dunning/dunning.js b/erpnext/accounts/doctype/dunning/dunning.js
index 5158cc2..7bc79e7 100644
--- a/erpnext/accounts/doctype/dunning/dunning.js
+++ b/erpnext/accounts/doctype/dunning/dunning.js
@@ -71,9 +71,6 @@
 						status: "Overdue",
 						company: frm.doc.company
 					},
-					allow_child_item_selection: true,
-					child_fielname: "payment_schedule",
-					child_columns: ["due_date", "outstanding"]
 				});
 			});
 		}