Remove seldom-used std::reference functions.

src/libstd/reference.rs

@@ -13,18 +13,6 @@
 #[cfg(not(test))]
 use prelude::*;
 
-/// Cast a region pointer - &T - to a uint.
-#[inline]
-pub fn to_uint<T>(thing: &T) -> uint {
-    thing as *T as uint
-}
-
-/// Determine if two borrowed pointers point to the same thing.
-#[inline]
-pub fn ref_eq<'a, 'b, T>(thing: &'a T, other: &'b T) -> bool {
-    (thing as *T) == (other as *T)
-}
-
 // Equality for region pointers
 #[cfg(not(test))]
 impl<'a, T: Eq> Eq for &'a T {
@@ -71,16 +59,3 @@ impl<'a, T: TotalEq> TotalEq for &'a T {
     fn equals(&self, other: & &'a T) -> bool { (**self).equals(*other) }
 }
 
-#[cfg(test)]
-mod tests {
-    use super::ref_eq;
-
-    #[test]
-    fn test_ref_eq() {
-        let x = 1;
-        let y = 1;
-
-        assert!(ref_eq(&x, &x));
-        assert!(!ref_eq(&x, &y));
-    }
-}