--- a/mercurial/statichttprepo.py	Tue Dec 05 21:37:30 2017 +0900
+++ b/mercurial/statichttprepo.py	Tue Dec 05 21:50:33 2017 +0900
@@ -166,8 +166,6 @@
         self.encodepats = None
         self.decodepats = None
         self._transref = None
-        # Cache of types representing filtered repos.
-        self._filteredrepotypes = {}
 
     def _restrictcapabilities(self, caps):
         caps = super(statichttprepository, self)._restrictcapabilities(caps)