core: Remove a useless test from option mod

src/libcore/option.rs

@@ -84,9 +84,6 @@ fn may<T>(opt: t<T>, f: fn(T)) {
     alt opt { none {/* nothing */ } some(t) { f(t); } }
 }
 
-#[test]
-fn test() { let _x = some::<int>(10); }
-
 // Local Variables:
 // mode: rust;
 // fill-column: 78;