Use Drop instead of destroy() for locks.

4 files changed, 0 insertions, 25 deletions

diff --git a/library/std/src/sys_common/condvar.rs b/library/std/src/sys_common/condvar.rs
index 67d4b126209..4e55340d6aa 100644
--- a/library/std/src/sys_common/condvar.rs
+++ b/library/std/src/sys_common/condvar.rs
@@ -55,9 +55,3 @@ impl Condvar {
         self.inner.wait_timeout(mutex.raw(), dur)
     }
 }
-
-impl Drop for Condvar {
-    fn drop(&mut self) {
-        unsafe { self.inner.destroy() };
-    }
-}
diff --git a/library/std/src/sys_common/mutex.rs b/library/std/src/sys_common/mutex.rs
index 12a09c98605..c0a681246a4 100644
--- a/library/std/src/sys_common/mutex.rs
+++ b/library/std/src/sys_common/mutex.rs
@@ -92,9 +92,3 @@ impl MovableMutex {
         self.0.unlock()
     }
 }
-
-impl Drop for MovableMutex {
-    fn drop(&mut self) {
-        unsafe { self.0.destroy() };
-    }
-}
diff --git a/library/std/src/sys_common/remutex.rs b/library/std/src/sys_common/remutex.rs
index 8f252308de7..8921af311d4 100644
--- a/library/std/src/sys_common/remutex.rs
+++ b/library/std/src/sys_common/remutex.rs
@@ -168,13 +168,6 @@ impl<T> ReentrantMutex<T> {
     }
 }
 
-impl<T> Drop for ReentrantMutex<T> {
-    fn drop(&mut self) {
-        // Safety: We're the unique owner of this mutex and not going to use it afterwards.
-        unsafe { self.mutex.destroy() }
-    }
-}
-
 impl<T> Deref for ReentrantMutexGuard<'_, T> {
     type Target = T;
 
diff --git a/library/std/src/sys_common/rwlock.rs b/library/std/src/sys_common/rwlock.rs
index 12e7a72a344..13a75705fec 100644
--- a/library/std/src/sys_common/rwlock.rs
+++ b/library/std/src/sys_common/rwlock.rs
@@ -126,9 +126,3 @@ impl MovableRwLock {
         self.0.write_unlock()
     }
 }
-
-impl Drop for MovableRwLock {
-    fn drop(&mut self) {
-        unsafe { self.0.destroy() };
-    }
-}