Remove default BOM filter in Work Order (#20117)

Not all companies use default BOM (e.g. construction companies, etc.)
diff --git a/erpnext/manufacturing/doctype/work_order/work_order.js b/erpnext/manufacturing/doctype/work_order/work_order.js
index 176ca2e..80bd89d 100644
--- a/erpnext/manufacturing/doctype/work_order/work_order.js
+++ b/erpnext/manufacturing/doctype/work_order/work_order.js
@@ -77,8 +77,7 @@
 			return {
 				query: "erpnext.controllers.queries.item_query",
 				filters:[
-					['is_stock_item', '=',1],
-					['default_bom', '!=', '']
+					['is_stock_item', '=',1]
 				]
 			};
 		});