cogitate: drop tier:3 hardcodes on 2 audit-missed talents

Surgical follow-up to 815ec9af. The CPO audit listed 9 cogitate talents
with hardcoded tier: 3, but a complete grep at lode time found 11. The
two stragglers strip the same single-line frontmatter field for the same
reason (tier is a generate-talent concern; cogitate calls inherit the
system default — google + TIER_FLASH = gemini-3-flash-preview):

- apps/todos/talent/daily.md
- talent/facet_newsletter.md

providers.json baseline was unaffected (these two talents resolve to
tier: 2 in that snapshot already, so no baseline refresh needed).