1 files changed, 0 insertions, 11 deletions
diff --git a/components/script/dom/htmlheadelement.rs b/components/script/dom/htmlheadelement.rs
index e19b9fb6508..58ca3f7a94d 100644
--- a/components/script/dom/htmlheadelement.rs
+++ b/components/script/dom/htmlheadelement.rs
@@ -3,12 +3,9 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 use dom::bindings::codegen::Bindings::HTMLHeadElementBinding;
-use dom::bindings::codegen::InheritTypes::{ElementTypeId, EventTargetTypeId};
 use dom::bindings::codegen::InheritTypes::{HTMLElementCast, HTMLElementTypeId};
-use dom::bindings::codegen::InheritTypes::{HTMLHeadElementDerived, NodeTypeId};
 use dom::bindings::js::Root;
 use dom::document::Document;
-use dom::eventtarget::EventTarget;
 use dom::htmlelement::HTMLElement;
 use dom::node::Node;
 use dom::userscripts::load_script;
@@ -20,14 +17,6 @@ pub struct HTMLHeadElement {
     htmlelement: HTMLElement
 }
 
-impl HTMLHeadElementDerived for EventTarget {
-    fn is_htmlheadelement(&self) -> bool {
-        *self.type_id() ==
-            EventTargetTypeId::Node(
-                NodeTypeId::Element(ElementTypeId::HTMLElement(HTMLElementTypeId::HTMLHeadElement)))
-    }
-}
-
 impl HTMLHeadElement {
     fn new_inherited(localName: DOMString,
                      prefix: Option<DOMString>,