1 files changed, 1 insertions, 11 deletions
diff --git a/components/script/dom/htmldialogelement.rs b/components/script/dom/htmldialogelement.rs
index f5c6047d93d..7cff2e2a9a5 100644
--- a/components/script/dom/htmldialogelement.rs
+++ b/components/script/dom/htmldialogelement.rs
@@ -5,11 +5,9 @@
 use dom::bindings::cell::DOMRefCell;
 use dom::bindings::codegen::Bindings::HTMLDialogElementBinding;
 use dom::bindings::codegen::Bindings::HTMLDialogElementBinding::HTMLDialogElementMethods;
-use dom::bindings::codegen::InheritTypes::{ElementTypeId, EventTargetTypeId};
-use dom::bindings::codegen::InheritTypes::{HTMLDialogElementDerived, HTMLElementTypeId, NodeTypeId};
+use dom::bindings::codegen::InheritTypes::HTMLElementTypeId;
 use dom::bindings::js::Root;
 use dom::document::Document;
-use dom::eventtarget::EventTarget;
 use dom::htmlelement::HTMLElement;
 use dom::node::Node;
 use std::borrow::ToOwned;
@@ -21,14 +19,6 @@ pub struct HTMLDialogElement {
     return_value: DOMRefCell<DOMString>,
 }
 
-impl HTMLDialogElementDerived for EventTarget {
-    fn is_htmldialogelement(&self) -> bool {
-        *self.type_id() ==
-            EventTargetTypeId::Node(
-                NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLDialogElement)))
-    }
-}
-
 impl HTMLDialogElement {
     fn new_inherited(localName: DOMString,
                      prefix: Option<DOMString>,