[issue33843] Remove deprecated stuff in cgi module

[INADA Naoki]

New submission from INADA Naoki <songofacandy at gmail.com>:

ref:

* cgi.escape is deprecated since 3.3. 67317750aff37489fd3fa279413ef20450e7c808
* parse_qs and parse_qsl are deprecated since 2008, before 3.0 https://github.com/python/cpython/commit/c469d4c3aa0a66579d1927f0e5d9630b3ea4024f

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components: Library (Lib)
messages: 319372
nosy: inada.naoki
priority: normal
severity: normal
status: open
title: Remove deprecated stuff in cgi module
versions: Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33843>
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