diff -r c6b8d5d91e73 -r bc7d465ea11e mercurial/interfaces/repository.py
--- a/mercurial/interfaces/repository.py	Mon May 03 12:21:46 2021 +0200
+++ b/mercurial/interfaces/repository.py	Mon May 03 12:21:56 2021 +0200
@@ -1167,13 +1167,6 @@
         """An ``ifilerevisionssequence`` instance."""
     )
 
-    indexfile = interfaceutil.Attribute(
-        """Path of revlog index file.
-
-        TODO this is revlog specific and should not be exposed.
-        """
-    )
-
     opener = interfaceutil.Attribute(
         """VFS opener to use to access underlying files used for storage.