ci: remove documentation deployment

docs/src/getting-started.md

@@ -37,6 +37,4 @@ repository's Nix development shell provides the checked tool version:
 nix develop -c make -C docs build
 ```
 
-The generated static site is written to `target/docs/`. The GitHub Pages
-workflow builds that same output from `main`; enable **GitHub Actions** as the
-repository's Pages publishing source once, then deployments are automatic.
+The generated static site is written to `target/docs/`.