filelog: stop proxying compress() (API)

The censoring code was previously relying on this. With a dedicated
censoring API on the interface, no consumers are left and we can
stop proxying this method.

Differential Revision: https://phab.mercurial-scm.org/D4658

mercurial/filelog.py

@@ -214,9 +214,6 b' class filelog(object):'
 
         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)