filelog: remove unused _file method

mercurial/bundlerepo.py

@@ -177,9 +177,6 b' class bundlefilelog(bundlerevlog, filelo'
     def baserevision(self, nodeorrev):
         return filelog.filelog.revision(self, nodeorrev)
 
-    def _file(self, f):
-        self._repo.file(f)
-
 class bundlepeer(localrepo.localpeer):
     def canpush(self):
         return False

mercurial/filelog.py

@@ -104,9 +104,6 b' class filelog(revlog.revlog):'
                 raise error.CensoredNodeError(self.indexfile, node)
             raise
 
-    def _file(self, f):
-        return filelog(self.opener, f)
-
     def _iscensored(self, rev):
         """Check if a file revision is censored."""
         return self.flags(rev) & revlog.REVIDX_ISCENSORED

mercurial/unionrepo.py

@@ -160,9 +160,6 b' class unionfilelog(unionrevlog, filelog.'
     def baserevdiff(self, rev1, rev2):
         return filelog.filelog.revdiff(self, rev1, rev2)
 
-    def _file(self, f):
-        self._repo.file(f)
-
 class unionpeer(localrepo.localpeer):
     def canpush(self):
         return False