Revert extraneous local assignment of scheduled tasks #2996
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This reverts commit 56b254e. (#2816)
Pull Request check-list
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Description of change
Scheduled tasks have strong references assigned to them by asyncio. The documentation mentioned is a mistake and is being removed. Furthermore, as mentioned in a comment on the original pull request, these local assignments are not enough to avoid garbage collection.
python/cpython#91887 (comment)
Also see: python/cpython#106203 and Rapptz/discord.py#9472 where the author of this pull request tried to submit a PR for a functional no-op similar to this one and was correctly rejected.