diff --git a/mercurial/scmutil.py b/mercurial/scmutil.py
--- a/mercurial/scmutil.py
+++ b/mercurial/scmutil.py
@@ -1388,4 +1388,3 @@ class backgroundfilecloser(object):
             return
 
         self._queue.put(fh, block=True, timeout=None)
-