Delete examples/gemini/python/docs-agent directory

[topfayez]

Description of the change

Motivation

Type of change

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Checklist

• I have performed a self-review of my code.
• I have added detailed comments to my code where applicable.
• I have verified that my change does not break existing code.
• My PR is based on the latest changes of the main branch (if unsure, please run git pull --rebase upstream main).
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[nickvander]

I think this PR may have been an error?