[docs] [issue18657] Remove duplicate ACKS entries

[Madison May]

New submission from Madison May:

The title says it all.  I used collections.Counter to check for duplicates in ACKS and cleaned up a few double entries.

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assignee: docs at python
components: Documentation
messages: 194410
nosy: docs at python, madison.may
priority: normal
severity: normal
status: open
title: Remove duplicate ACKS entries
versions: Python 3.4, Python 3.5

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18657>
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