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-rw-r--r--library/core/src/lib.rs3
1 files changed, 0 insertions, 3 deletions
diff --git a/library/core/src/lib.rs b/library/core/src/lib.rs
index ccd6534de9b..7060da172f3 100644
--- a/library/core/src/lib.rs
+++ b/library/core/src/lib.rs
@@ -173,9 +173,6 @@
 //
 // Language features:
 // tidy-alphabetical-start
-#![cfg_attr(bootstrap, feature(const_mut_refs))]
-#![cfg_attr(bootstrap, feature(const_refs_to_cell))]
-#![cfg_attr(bootstrap, feature(const_refs_to_static))]
 #![feature(abi_unadjusted)]
 #![feature(adt_const_params)]
 #![feature(allow_internal_unsafe)]