🔥 Deletion of toStrictlyPositiveInt extension function

[LVMVRQUXL]

📝 Description

We would like to remove the Number.toStrictlyPositiveInt() extension function.

🔗 Dependencies

This issue is blocked by the following ones:

• 🗑️ Deprecation promotion of toStrictlyPositiveInt extension function to hidden level #444

✅ Checklist

• Remove the declaration, update the public API binaries and the unreleased changelog.
• Close this issue as completed and update tracking ones if present.

[LVMVRQUXL]

We are not ready to implement this change.