[issue40208] Remove deprecated SymbolTable.has_exec

[Batuhan Taskaya]

Change by Batuhan Taskaya <batuhanosmantaskaya at gmail.com>:


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keywords: +patch
pull_requests: +18758
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/19396

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40208>
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