[issue37566] Remove redudant code in socket.py

[hai shi]

New submission from hai shi <shihai1991 at 126.com>:

Looks like the _realsocket in socket.py is redudnat. But I am not sure somebody would use it or not.

REF: https://github.com/python/cpython/blob/master/Lib/socket.py#L107

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components: Library (Lib)
messages: 347692
nosy: shihai1991
priority: normal
severity: normal
status: open
title: Remove redudant code in socket.py

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37566>
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