assistant2: Remove unneeded `pub` on field (#26399)

This PR removes an unneeded `pub` on a field in the `ContextStrip`, as
it was never accessed externally.

Release Notes:

- N/A
570c396e84Marshall Bowers committed on 3/10/2025, 8:55:53 PM· committed by GitHubparent5fd034e
1 file changedLine totals unavailable