fix: remove unsupported arguments

Co-authored-by: Ankush Menat <ankushmenat@gmail.com>
diff --git a/erpnext/stock/doctype/warehouse/warehouse.js b/erpnext/stock/doctype/warehouse/warehouse.js
index 6a6ed1d..3d7f592 100644
--- a/erpnext/stock/doctype/warehouse/warehouse.js
+++ b/erpnext/stock/doctype/warehouse/warehouse.js
@@ -40,8 +40,6 @@
 			function () {
 				convert_to_group_or_ledger(frm);
 			},
-			"fa fa-retweet",
-			"btn-default"
 		);
 
 		if (!frm.doc.is_group && frm.doc.__onload && frm.doc.__onload.account) {