delete incorrect test

tests/ui/borrowck/kindck-implicit-close-over-mut-var.rs

@@ -1,49 +0,0 @@
-//@ run-pass
-
-#![allow(unused_must_use)]
-#![allow(dead_code)]
-use std::thread;
-
-fn user(_i: isize) {}
-
-fn foo() {
-    // Here, i is *copied* into the proc (heap closure).
-    // Requires allocation.  The proc's copy is not mutable.
-    let mut i = 0;
-    let t = thread::spawn(move|| {
-        user(i);
-        println!("spawned {}", i)
-    });
-    i += 1;
-    println!("original {}", i);
-    t.join();
-}
-
-fn bar() {
-    // Here, the original i has not been moved, only copied, so is still
-    // mutable outside of the proc.
-    let mut i = 0;
-    while i < 10 {
-        let t = thread::spawn(move|| {
-            user(i);
-        });
-        i += 1;
-        t.join();
-    }
-}
-
-fn car() {
-    // Here, i must be shadowed in the proc to be mutable.
-    let mut i = 0;
-    while i < 10 {
-        let t = thread::spawn(move|| {
-            let mut i = i;
-            i += 1;
-            user(i);
-        });
-        i += 1;
-        t.join();
-    }
-}
-
-pub fn main() {}