[docs] [issue19271] Update OrderedDict "see also" link

[Roundup Robot]

Roundup Robot added the comment:

New changeset 9e322a8f80d9 by Raymond Hettinger in branch 'default':
Issue #19271:  By Python3.4, the Python 2.4 backport links are no longer of much interest.
http://hg.python.org/cpython/rev/9e322a8f80d9

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nosy: +python-dev

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