Chore: Remove unused foo.txt

[notdodo]

Fixes #1132

Description

What problem does this PR solve?
Removes foo.txt, a stray 0-byte file at the repository root with no references anywhere in the codebase.

How does this PR solve the problem?
Deletes foo.txt.

Any other relevant information:
None.

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Checklist:

General Checks:

• I have read and followed the project's contributing.md guide.
• My code follows the project's coding style guidelines.
• I have performed a self-review of my own code.
• My changes do not introduce any new warnings.
• My changes pass all existing tests.
• I have added new tests where appropriate to cover my changes. (Not applicable)
• I have updated the documentation where necessary. (Not applicable)

Open-Source Specific Checks:

• My changes do not introduce any Personally Identifiable Information (PII) or sensitive customer data.
• My changes do not expose any internal-only code examples, configurations, or URLs.
• All code examples, comments, and messages are generic and suitable for a public repository.

[notdodo]

@TalShafir1 / @AmitJ98 can you please take a look? it's just a deletion of a leftover file

[notdodo]

Can this be merged?