refactor: remove unused annotation

[tonyydl]

[JolandaVerhoef]

Thank you for your contribution! It seems like our syntax checker is failing, as there's unused imports. Can you remove the imports that became unused because of the annotations you removed?

[stale[bot]]

This issue has been automatically marked as stale because it has not had any recent activity. Please comment here if it is still valid so that we can reprioritize it. Thank you for your contributions.