stream: don't call `cleanup` twice on `end` and `close`

lib/stream.js

@@ -63,9 +63,6 @@ Stream.prototype.pipe = function(dest, options) {
     if (didOnEnd) return;
     didOnEnd = true;
 
-    // remove the listeners
-    cleanup();
-
     dest.end();
   }
 
@@ -74,9 +71,6 @@ Stream.prototype.pipe = function(dest, options) {
     if (didOnEnd) return;
     didOnEnd = true;
 
-    // remove the listeners
-    cleanup();
-
     dest.destroy();
   }