There's a merged pull request on the void-packages repository

python3-prompt_toolkit: disable workaround for ipython 8.18
https://github.com/void-linux/void-packages/pull/47516

Description:
See:
https://github.com/prompt-toolkit/python-prompt-toolkit/pull/1811#issuecomment-1827043359 https://github.com/prompt-toolkit/python-prompt-toolkit/pull/1821

Since the update to `prompt_toolkit-3.0.41_1` we get:
```
$ sage
┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 10.1, Release Date: 2023-08-20                    │
│ Using Python 3.12.0. Type "help()" for help.                       │
└────────────────────────────────────────────────────────────────────┘
/usr/lib/python3.12/site-packages/prompt_toolkit/application/application.py:988: DeprecationWarning: There is no current event loop
  loop = asyncio.get_event_loop()
```

This is due to https://github.com/prompt-toolkit/python-prompt-toolkit/pull/1811, which works around an issue with ipython <= 8.17. Since we already ship ipython 8.18 we can safely remove the workaround.

Note that I proposed this upstream and I was asked to do a PR, the patch here is taken from https://github.com/prompt-toolkit/python-prompt-toolkit/pull/1821.

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#### Testing the changes
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Cc: @ahesford 
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