threads: remove vlc_rwlock_destroy()

include/vlc_threads.h

@@ -544,17 +544,9 @@ typedef struct vlc_rwlock
 
 /**
  * Initializes a read/write lock.
- *
- * After use, a read/write lock must be deinitialized with
- * vlc_rwlock_destroy().
  */
 VLC_API void vlc_rwlock_init(vlc_rwlock_t *);
 
-/**
- * Destroys an initialized unused read/write lock.
- */
-VLC_API void vlc_rwlock_destroy(vlc_rwlock_t *);
-
 /**
  * Acquires a read/write lock for reading.
  *

src/libvlccore.sym

@@ -651,7 +651,6 @@ vlc_lrand48
 vlc_mrand48
 vlc_qsort
 vlc_restorecancel
-vlc_rwlock_destroy
 vlc_rwlock_init
 vlc_rwlock_rdlock
 vlc_rwlock_unlock

src/misc/messages.c

@@ -332,7 +332,6 @@ static void vlc_LogSwitchClose(void *d)
     logswitch->backend = &discard_log;
     backend->ops->destroy(backend);
 
-    vlc_rwlock_destroy(&logswitch->lock);
     free(logswitch);
 }
 

src/misc/threads.c

@@ -391,11 +391,6 @@ void vlc_rwlock_init (vlc_rwlock_t *lock)
     lock->state = 0;
 }
 
-void vlc_rwlock_destroy (vlc_rwlock_t *lock)
-{
-    (void) lock;
-}
-
 void vlc_rwlock_rdlock (vlc_rwlock_t *lock)
 {
     vlc_mutex_lock (&lock->mutex);