diff -r 42aa61fc5544 -r 6d6ddcfa62a6 mercurial/filelog.py
--- a/mercurial/filelog.py	Tue Sep 18 17:56:15 2018 -0700
+++ b/mercurial/filelog.py	Tue Sep 18 17:57:36 2018 -0700
@@ -214,9 +214,6 @@
 
         return self._revlog.clone(tr, destrevlog._revlog, **kwargs)
 
-    def compress(self, data):
-        return self._revlog.compress(data)
-
     def _addrevision(self, *args, **kwargs):
         return self._revlog._addrevision(*args, **kwargs)