It was only used as a helper in types.py to access types (GetSetDescriptorType and MemberDescriptorType),
when they can easily be obtained with python code.
These expressions even work with Jython.
I don't know what the future of the types module is; (cf. discussion in http://bugs.python.org/issue1605 )
at least this change makes it simpler.
I applied the same changes manually to VS7.1 and VC6 files; completely untested.
(Christian, don't try too hard merging this change into py3k.
It will be easier to do the same work again on the branch)