Remove the absv implementation, it isn't needed by Rust

src/lib.rs

@@ -118,23 +118,3 @@ impl IndexMut<RangeFull> for U64 {
         unsafe { &mut *(self as *const _ as *mut u64) }
     }
 }
-
-macro_rules! absv_i2 {
-    ($intrinsic:ident : $ty:ty) => {
-        #[no_mangle]
-        pub extern "C" fn $intrinsic(x: $ty) -> $ty {
-            let n = <$ty>::bits();
-            if x == 1 << (n - 1) {
-                panic!();
-            }
-            let y = x >> (n - 1);
-            (x ^ y) - y
-        }
-
-    }
-}
-
-absv_i2!(__absvsi2: i32);
-absv_i2!(__absvdi2: i64);
-// TODO(rust-lang/35118)?
-// absv_i2!(__absvti2, i128);

src/test.rs

@@ -2,30 +2,6 @@ use std::panic;
 
 use quickcheck::TestResult;
 
-macro_rules! absv_i2 {
-    ($intrinsic:ident: $ty:ident) => {
-        #[test]
-        fn $intrinsic() {
-            assert!(panic::catch_unwind(|| ::$intrinsic(::std::$ty::MIN)).is_err());
-            assert_eq!(::$intrinsic(::std::$ty::MIN + 1), ::std::$ty::MAX);
-            assert_eq!(::$intrinsic(::std::$ty::MIN + 2), ::std::$ty::MAX - 1);
-            assert_eq!(::$intrinsic(-1), 1);
-            assert_eq!(::$intrinsic(-2), 2);
-            assert_eq!(::$intrinsic(0), 0);
-            assert_eq!(::$intrinsic(1), 1);
-            assert_eq!(::$intrinsic(2), 2);
-            assert_eq!(::$intrinsic(2), 2);
-            assert_eq!(::$intrinsic(::std::$ty::MAX - 1), ::std::$ty::MAX - 1);
-            assert_eq!(::$intrinsic(::std::$ty::MAX), ::std::$ty::MAX);
-        }
-    }
-}
-
-absv_i2!(__absvsi2: i32);
-absv_i2!(__absvdi2: i64);
-// TODO(rust-lang/35118)?
-// absv_i2!(__absvti2: i128);
-
 quickcheck! {
     fn udivmoddi4(n: (u32, u32), d: (u32, u32)) -> TestResult {
         let n = ::U64 { low: n.0, high: n.1 }[..];