stylo: Remove TElement::attr_equals

components/script/layout_wrapper.rs

@@ -399,11 +399,6 @@ impl<'le> TElement for ServoLayoutElement<'le> {
         self.get_attr(namespace, attr).is_some()
     }
 
-    #[inline]
-    fn attr_equals(&self, namespace: &Namespace, attr: &LocalName, val: &Atom) -> bool {
-        self.get_attr(namespace, attr).map_or(false, |x| x == val)
-    }
-
     #[inline(always)]
     fn each_class<F>(&self, mut callback: F) where F: FnMut(&Atom) {
         unsafe {

components/style/dom.rs

@@ -368,9 +368,6 @@ pub trait TElement : Eq + PartialEq + Debug + Hash + Sized + Copy + Clone +
     /// Whether this element has an attribute with a given namespace.
     fn has_attr(&self, namespace: &Namespace, attr: &LocalName) -> bool;
 
-    /// Whether an attribute value equals `value`.
-    fn attr_equals(&self, namespace: &Namespace, attr: &LocalName, value: &Atom) -> bool;
-
     /// Internal iterator for the classes of this element.
     fn each_class<F>(&self, callback: F) where F: FnMut(&Atom);
 

components/style/gecko/wrapper.rs

@@ -726,17 +726,6 @@ impl<'le> TElement for GeckoElement<'le> {
         }
     }
 
-    #[inline]
-    fn attr_equals(&self, namespace: &Namespace, attr: &Atom, val: &Atom) -> bool {
-        unsafe {
-            bindings::Gecko_AttrEquals(self.0,
-                                       namespace.0.as_ptr(),
-                                       attr.as_ptr(),
-                                       val.as_ptr(),
-                                       /* ignoreCase = */ false)
-        }
-    }
-
     fn each_class<F>(&self, callback: F)
         where F: FnMut(&Atom)
     {