style: remove unnecessary shebangs #!...

[aucampia]

Summary of changes

These files don't need shebangs as running them won't do something useful.

Checklist

• Checked that there aren't other open pull requests for
  the same change.
• Checked that all tests and type checking passes.
• Considered granting push permissions to the PR branch,
  so maintainers can fix minor issues and keep your PR up to date.