Remove seldom-used std::reference functions.

src/test/run-pass/borrowck-borrow-from-expr-block.rs

@@ -10,7 +10,6 @@
 
 #[feature(managed_boxes)];
 
-use std::reference;
 use std::ptr;
 
 fn borrow(x: &int, f: |x: &int|) {
@@ -20,7 +19,7 @@ fn borrow(x: &int, f: |x: &int|) {
 fn test1(x: @~int) {
     borrow(&*(*x).clone(), |p| {
         let x_a = ptr::to_unsafe_ptr(&**x);
-        assert!((x_a as uint) != reference::to_uint(p));
+        assert!((x_a as uint) != (p as *int as uint));
         assert_eq!(unsafe{*x_a}, *p);
     })
 }

src/test/run-pass/cast-region-to-uint.rs

@@ -8,9 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use std::reference;
-
 pub fn main() {
     let x = 3;
-    info!("&x={:x}", reference::to_uint(&x));
+    info!("&x={:x}", (&x as *int as uint));
 }