Remove the deprecated Heap type/const

Author: SimonSapin

src/liballoc/alloc.rs

@@ -40,15 +40,6 @@ extern "Rust" {
 #[derive(Copy, Clone, Default, Debug)]
 pub struct Global;
 
-#[unstable(feature = "allocator_api", issue = "32838")]
-#[rustc_deprecated(since = "1.27.0", reason = "type renamed to `Global`")]
-pub type Heap = Global;
-
-#[unstable(feature = "allocator_api", issue = "32838")]
-#[rustc_deprecated(since = "1.27.0", reason = "type renamed to `Global`")]
-#[allow(non_upper_case_globals)]
-pub const Heap: Global = Global;
-
 #[unstable(feature = "allocator_api", issue = "32838")]
 #[inline]
 pub unsafe fn alloc(layout: Layout) -> *mut u8 {

src/libstd/alloc.rs

@@ -12,7 +12,6 @@
 
 #![unstable(issue = "32838", feature = "allocator_api")]
 
-#[doc(inline)] #[allow(deprecated)] pub use alloc_crate::alloc::Heap;
 #[doc(inline)] pub use alloc_crate::alloc::{Global, Layout, oom};
 #[doc(inline)] pub use alloc_crate::alloc::{alloc, alloc_zeroed, dealloc, realloc};
 #[doc(inline)] pub use alloc_system::System;