1 files changed, 1 insertions, 27 deletions
diff --git a/components/script/dom/bindings/trace.rs b/components/script/dom/bindings/trace.rs
index f18719073fc..d656ae0fcad 100644
--- a/components/script/dom/bindings/trace.rs
+++ b/components/script/dom/bindings/trace.rs
@@ -66,7 +66,7 @@ use selectors::states::*;
 use serde::{Deserialize, Serialize};
 use smallvec::SmallVec;
 use std::boxed::FnBox;
-use std::cell::{Cell, RefCell, UnsafeCell};
+use std::cell::{Cell, UnsafeCell};
 use std::collections::hash_state::HashState;
 use std::collections::{HashMap, HashSet};
 use std::ffi::CString;
@@ -139,12 +139,6 @@ pub fn trace_object(tracer: *mut JSTracer, description: &str, obj: &Heap<*mut JS
     }
 }
 
-impl<T: JSTraceable> JSTraceable for RefCell<T> {
-    fn trace(&self, trc: *mut JSTracer) {
-        self.borrow().trace(trc)
-    }
-}
-
 impl<T: JSTraceable> JSTraceable for Rc<T> {
     fn trace(&self, trc: *mut JSTracer) {
         (**self).trace(trc)
@@ -157,26 +151,6 @@ impl<T: JSTraceable> JSTraceable for Box<T> {
     }
 }
 
-impl<T: JSTraceable> JSTraceable for *const T {
-    fn trace(&self, trc: *mut JSTracer) {
-        if !self.is_null() {
-            unsafe {
-                (**self).trace(trc)
-            }
-        }
-    }
-}
-
-impl<T: JSTraceable> JSTraceable for *mut T {
-    fn trace(&self, trc: *mut JSTracer) {
-        if !self.is_null() {
-            unsafe {
-                (**self).trace(trc)
-            }
-        }
-    }
-}
-
 impl<T: JSTraceable + Copy> JSTraceable for Cell<T> {
     fn trace(&self, trc: *mut JSTracer) {
         self.get().trace(trc)