diff --git a/src/librustdoc/util.rs b/src/librustdoc/util.rs
index 23741ed5acfa9ad55b6d7eef406fd35a18a29510..37f373504e624645ca661f1f97dd692710dd694f 100644
--- a/src/librustdoc/util.rs
+++ b/src/librustdoc/util.rs
@@ -21,27 +21,3 @@ pub struct NominalOp<T> {
 impl<T: Copy> NominalOp<T>: Clone {
     fn clone(&self) -> NominalOp<T> { copy *self }
 }
-
-pub fn spawn_listener<A: Owned>(
-    f: fn~(oldcomm::Port<A>)) -> oldcomm::Chan<A> {
-    let setup_po = oldcomm::Port();
-    let setup_ch = oldcomm::Chan(&setup_po);
-    do task::spawn |move f| {
-        let po = oldcomm::Port();
-        let ch = oldcomm::Chan(&po);
-        oldcomm::send(setup_ch, ch);
-        f(move po);
-    }
-    oldcomm::recv(setup_po)
-}
-
-pub fn spawn_conversation<A: Owned, B: Owned>
-    (f: fn~(oldcomm::Port<A>, oldcomm::Chan<B>))
-    -> (oldcomm::Port<B>, oldcomm::Chan<A>) {
-    let from_child = oldcomm::Port();
-    let to_parent = oldcomm::Chan(&from_child);
-    let to_child = do spawn_listener |move f, from_parent| {
-        f(from_parent, to_parent)
-    };
-    (from_child, to_child)
-}