Use #[dom_struct] everywhere

components/script/dom/htmltablesectionelement.rs

@@ -13,9 +13,7 @@ use dom::htmlelement::HTMLElement;
 use dom::node::{Node, ElementNodeTypeId};
 use servo_util::str::DOMString;
 
-#[jstraceable]
-#[must_root]
-#[privatize]
+#[dom_struct]
 pub struct HTMLTableSectionElement {
     htmlelement: HTMLElement,
 }