diff --git a/src/backend/storage/lmgr/lwlock.c b/src/backend/storage/lmgr/lwlock.c
index 415794682a2..2ee0339c52e 100644
--- a/src/backend/storage/lmgr/lwlock.c
+++ b/src/backend/storage/lmgr/lwlock.c
@@ -1955,21 +1955,6 @@ LWLockReleaseAll(void)
 }
 
 
-/*
- * ForEachLWLockHeldByMe - run a callback for each held lock
- *
- * This is meant as debug support only.
- */
-void
-ForEachLWLockHeldByMe(void (*callback) (LWLock *, LWLockMode, void *),
-					  void *context)
-{
-	int			i;
-
-	for (i = 0; i < num_held_lwlocks; i++)
-		callback(held_lwlocks[i].lock, held_lwlocks[i].mode, context);
-}
-
 /*
  * LWLockHeldByMe - test whether my process holds a lock in any mode
  *
diff --git a/src/include/storage/lwlock.h b/src/include/storage/lwlock.h
index a98d302c602..df589902adc 100644
--- a/src/include/storage/lwlock.h
+++ b/src/include/storage/lwlock.h
@@ -129,8 +129,6 @@ extern void LWLockReleaseClearVar(LWLock *lock, pg_atomic_uint64 *valptr, uint64
 extern void LWLockReleaseAll(void);
 extern void LWLockDisown(LWLock *lock);
 extern void LWLockReleaseDisowned(LWLock *lock, LWLockMode mode);
-extern void ForEachLWLockHeldByMe(void (*callback) (LWLock *, LWLockMode, void *),
-								  void *context);
 extern bool LWLockHeldByMe(LWLock *lock);
 extern bool LWLockAnyHeldByMe(LWLock *lock, int nlocks, size_t stride);
 extern bool LWLockHeldByMeInMode(LWLock *lock, LWLockMode mode);