Update `cfg(bootstrap)`

1 files changed, 1 insertions, 17 deletions

diff --git a/compiler/rustc_serialize/src/lib.rs b/compiler/rustc_serialize/src/lib.rs
index 656ecfcab36..806d880b19c 100644
--- a/compiler/rustc_serialize/src/lib.rs
+++ b/compiler/rustc_serialize/src/lib.rs
@@ -3,7 +3,6 @@
 // tidy-alphabetical-start
 #![allow(internal_features)]
 #![allow(rustc::internal)]
-#![cfg_attr(not(bootstrap), feature(sized_hierarchy))]
 #![cfg_attr(test, feature(test))]
 #![doc(
     html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/",
@@ -15,6 +14,7 @@
 #![feature(min_specialization)]
 #![feature(never_type)]
 #![feature(rustdoc_internals)]
+#![feature(sized_hierarchy)]
 // tidy-alphabetical-end
 
 // Allows macros to refer to this crate as `::rustc_serialize`.
@@ -28,19 +28,3 @@ mod serialize;
 pub mod int_overflow;
 pub mod leb128;
 pub mod opaque;
-
-// This has nothing to do with `rustc_serialize` but it is convenient to define it in one place
-// for the rest of the compiler so that `cfg(bootstrap)` doesn't need to be littered throughout
-// the compiler wherever `PointeeSized` would be used. `rustc_serialize` happens to be the deepest
-// crate in the crate graph which uses `PointeeSized`.
-//
-// When bootstrap bumps, remove both the `cfg(not(bootstrap))` and `cfg(bootstrap)` lines below
-// and just import `std::marker::PointeeSized` whereever this item was used.
-
-#[cfg(not(bootstrap))]
-pub use std::marker::PointeeSized;
-
-#[cfg(bootstrap)]
-pub trait PointeeSized {}
-#[cfg(bootstrap)]
-impl<T: ?Sized> PointeeSized for T {}