repoview: backout ced3ecfc2e57

Monkey patching repoview does not really work and making it really work will
be really hard. So we better have it broken without complexity than broken with
extra complexity.

mercurial/repoview.py

@@ -6,7 +6,6
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
-import types
 import copy
 import error
 import phases
@@ -311,10 +310,6 class repoview(object):
         return getattr(self._unfilteredrepo, attr)
 
     def __setattr__(self, attr, value):
-        # Allow method replacement on filtered repos, like status() in
-        # largefiles' purge override
-        if type(value) == types.FunctionType:
-            object.__setattr__(self, attr, value)
         return setattr(self._unfilteredrepo, attr, value)
 
     def __delattr__(self, attr):