1 files changed, 1 insertions, 12 deletions
diff --git a/components/script/dom/htmloptgroupelement.rs b/components/script/dom/htmloptgroupelement.rs
index d476b0edaaa..a377a59c009 100644
--- a/components/script/dom/htmloptgroupelement.rs
+++ b/components/script/dom/htmloptgroupelement.rs
@@ -5,14 +5,11 @@
 use dom::attr::Attr;
 use dom::bindings::codegen::Bindings::HTMLOptGroupElementBinding;
 use dom::bindings::codegen::Bindings::HTMLOptGroupElementBinding::HTMLOptGroupElementMethods;
-use dom::bindings::codegen::InheritTypes::{ElementTypeId, EventTargetTypeId};
 use dom::bindings::codegen::InheritTypes::{HTMLElementCast, HTMLElementTypeId};
-use dom::bindings::codegen::InheritTypes::{HTMLOptGroupElementDerived, HTMLOptionElementDerived};
-use dom::bindings::codegen::InheritTypes::{NodeCast, NodeTypeId};
+use dom::bindings::codegen::InheritTypes::{HTMLOptionElementDerived, NodeCast};
 use dom::bindings::js::Root;
 use dom::document::Document;
 use dom::element::AttributeMutation;
-use dom::eventtarget::EventTarget;
 use dom::htmlelement::HTMLElement;
 use dom::node::Node;
 use dom::virtualmethods::VirtualMethods;
@@ -23,14 +20,6 @@ pub struct HTMLOptGroupElement {
     htmlelement: HTMLElement
 }
 
-impl HTMLOptGroupElementDerived for EventTarget {
-    fn is_htmloptgroupelement(&self) -> bool {
-        *self.type_id() ==
-            EventTargetTypeId::Node(
-                NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLOptGroupElement)))
-    }
-}
-
 impl HTMLOptGroupElement {
     fn new_inherited(localName: DOMString,
                      prefix: Option<DOMString>,