5 files changed, 0 insertions, 5 deletions
diff --git a/library/std/src/sys/sync/condvar/no_threads.rs b/library/std/src/sys/sync/condvar/no_threads.rs
index 2a67ed766aa..88ce39305e1 100644
--- a/library/std/src/sys/sync/condvar/no_threads.rs
+++ b/library/std/src/sys/sync/condvar/no_threads.rs
@@ -5,7 +5,6 @@ pub struct Condvar {}
 
 impl Condvar {
     #[inline]
-    #[cfg_attr(bootstrap, rustc_const_stable(feature = "const_locks", since = "1.63.0"))]
     pub const fn new() -> Condvar {
         Condvar {}
     }
diff --git a/library/std/src/sys/sync/mutex/no_threads.rs b/library/std/src/sys/sync/mutex/no_threads.rs
index 7b243575e01..57c78f454c5 100644
--- a/library/std/src/sys/sync/mutex/no_threads.rs
+++ b/library/std/src/sys/sync/mutex/no_threads.rs
@@ -10,7 +10,6 @@ unsafe impl Sync for Mutex {} // no threads on this platform
 
 impl Mutex {
     #[inline]
-    #[cfg_attr(bootstrap, rustc_const_stable(feature = "const_locks", since = "1.63.0"))]
     pub const fn new() -> Mutex {
         Mutex { locked: Cell::new(false) }
     }
diff --git a/library/std/src/sys/sync/once/no_threads.rs b/library/std/src/sys/sync/once/no_threads.rs
index fb1b496510a..88a1d50361e 100644
--- a/library/std/src/sys/sync/once/no_threads.rs
+++ b/library/std/src/sys/sync/once/no_threads.rs
@@ -35,7 +35,6 @@ unsafe impl Sync for Once {}
 
 impl Once {
     #[inline]
-    #[cfg_attr(bootstrap, rustc_const_stable(feature = "const_once_new", since = "1.32.0"))]
     pub const fn new() -> Once {
         Once { state: Cell::new(State::Incomplete) }
     }
diff --git a/library/std/src/sys/sync/once/queue.rs b/library/std/src/sys/sync/once/queue.rs
index 87837915b39..5beff4ce683 100644
--- a/library/std/src/sys/sync/once/queue.rs
+++ b/library/std/src/sys/sync/once/queue.rs
@@ -116,7 +116,6 @@ fn to_state(current: StateAndQueue) -> usize {
 
 impl Once {
     #[inline]
-    #[cfg_attr(bootstrap, rustc_const_stable(feature = "const_once_new", since = "1.32.0"))]
     pub const fn new() -> Once {
         Once { state_and_queue: AtomicPtr::new(ptr::without_provenance_mut(INCOMPLETE)) }
     }
diff --git a/library/std/src/sys/sync/rwlock/no_threads.rs b/library/std/src/sys/sync/rwlock/no_threads.rs
index c11e59f719e..573d0d602db 100644
--- a/library/std/src/sys/sync/rwlock/no_threads.rs
+++ b/library/std/src/sys/sync/rwlock/no_threads.rs
@@ -10,7 +10,6 @@ unsafe impl Sync for RwLock {} // no threads on this platform
 
 impl RwLock {
     #[inline]
-    #[cfg_attr(bootstrap, rustc_const_stable(feature = "const_locks", since = "1.63.0"))]
     pub const fn new() -> RwLock {
         RwLock { mode: Cell::new(0) }
     }