fix: Remove row highlight code from setup_sortable method

frappe/custom/doctype/customize_form/customize_form.js

@@ -50,6 +50,8 @@ frappe.ui.form.on("Customize Form", {
 				$(grid_row.row).css({ "font-weight": "bold" });
 			}
 
+			grid_row.row.removeClass("highlight");
+
 			if (grid_row.doc.is_custom_field && !grid_row.row.hasClass('highlight')) {
 				grid_row.row.addClass("highlight");
 			}
@@ -88,17 +90,11 @@ frappe.ui.form.on("Customize Form", {
 	},
 
 	setup_sortable: function(frm) {
-		frm.page.body.find(".highlight").removeClass("highlight");
 		frm.doc.fields.forEach(function(f, i) {
-			var data_row = frm.page.body.find(
-				'[data-fieldname="fields"] [data-idx="' + f.idx + '"] .data-row'
-			);
-
-			if (f.is_custom_field) {
-				data_row.addClass("highlight");
-			} else {
+			if (!f.is_custom_field) {
 				f._sortable = false;
 			}
+
 			if (f.fieldtype == "Table") {
 				frm.add_custom_button(
 					f.options,