Remove the caller-side Python sol link modules now that join and serve dispatch natively. The solstone.think.link package remains for home-side modules, but it no longer re-exports a caller CLI entry point and the compat inventory drops only the link line. Remove journal link from the journal-host command surface and its generated command expectations. This is a real user-visible removal, not cleanup; expected-differs. Delete the caller-side link CLI tests with the retired modules, relocate the CSR helper into the surviving certless test helpers, and repair the remaining TLS and pairing tests without compatibility shims. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>