[issue35636] remove redundant code in unicode_hash(PyObject *self)

[Ma Lin]

Change by Ma Lin <malincns at 163.com>:


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keywords: +patch, patch, patch
pull_requests: +10783, 10784, 10785
stage:  -> patch review

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue35636>
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