Revert "Add test for issue 2214"

This reverts commit 290206b1.

Forgot to add the actual native code, temporarily reverting.

src/test/run-pass/issue-2214.rs

-import libc::{c_double, c_int};
-
-fn lgamma(n: c_double, value: &mut int) -> c_double {
-  ret m::lgamma(n, value as &mut c_int);
-}
-
-#[link_name = "m"]
-#[abi = "cdecl"]
-native mod m {
-    #[link_name="lgamma_r"] fn lgamma(n: c_double, sign: &mut c_int)
-      -> c_double;
-}
-
-fn main() {
-  let mut y: int = 5;
-  let x: &mut int = &mut y;
-  assert (lgamma(1.0 as c_double, x) == 42.0 as c_double);
-}
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