Remove Managed

Leftovers from @-pointer times.

src/libcore/intrinsics.rs

@@ -267,9 +267,6 @@ extern "rust-intrinsic" {
     /// `Copy`, then may return `true` or `false`.
     pub fn needs_drop<T>() -> bool;
 
-    /// Returns `true` if a type is managed (will be allocated on the local heap)
-    pub fn owns_managed<T>() -> bool;
-
     /// Calculates the offset from a pointer.
     ///
     /// This is implemented as an intrinsic to avoid converting to and from an

src/libcore/marker.rs

@@ -43,7 +43,6 @@ unsafe impl Send for .. { }
 
 impl<T> !Send for *const T { }
 impl<T> !Send for *mut T { }
-impl !Send for Managed { }
 
 /// Types with a constant size known at compile-time.
 #[stable(feature = "rust1", since = "1.0.0")]
@@ -212,7 +211,6 @@ unsafe impl Sync for .. { }
 
 impl<T> !Sync for *const T { }
 impl<T> !Sync for *mut T { }
-impl !Sync for Managed { }
 
 /// A type which is considered "not POD", meaning that it is not
 /// implicitly copyable. This is typically embedded in other types to
@@ -223,14 +221,6 @@ impl !Sync for Managed { }
 #[derive(Clone, PartialEq, Eq, PartialOrd, Ord)]
 pub struct NoCopy;
 
-/// A type which is considered managed by the GC. This is typically
-/// embedded in other types.
-#[unstable(feature = "core",
-           reason = "likely to change with new variance strategy")]
-#[lang="managed_bound"]
-#[derive(Clone, PartialEq, Eq, PartialOrd, Ord)]
-pub struct Managed;
-
 macro_rules! impls{
     ($t: ident) => (
         impl<T:?Sized> Hash for $t<T> {