diff --git a/lib/internal/streams/destroy.js b/lib/internal/streams/destroy.js
index 6eb46c7f7c454e..d55694b3106b3b 100644
--- a/lib/internal/streams/destroy.js
+++ b/lib/internal/streams/destroy.js
@@ -1,18 +1,10 @@
 'use strict';
 
-// Undocumented cb() API, needed for core, not for public API.
-// The cb() will be invoked synchronously if _destroy is synchronous.
-// If cb is passed no 'error' event will be emitted.
-function destroy(err, cb) {
+function destroy(err) {
   const r = this._readableState;
   const w = this._writableState;
 
   if ((w && w.destroyed) || (r && r.destroyed)) {
-    if (typeof cb === 'function') {
-      // TODO(ronag): Invoke with `'close'`/`'error'`.
-      cb();
-    }
-
     return this;
   }
 
@@ -52,10 +44,6 @@ function destroy(err, cb) {
       r.closed = true;
     }
 
-    if (typeof cb === 'function') {
-      cb(err);
-    }
-
     if (err) {
       process.nextTick(emitErrorCloseNT, this, err);
     } else {