mkdocs.yml: rm Update from v2.5 > Update to latest v3.3 (#2632)

- Duplicates Update from v3.3 > Update to v3.3.latest
- Already linked at the end of Update from v2.5 > Update to v3.3
- Surprising ToC current item highlight behavior

Author: adriendupuis

mkdocs.yml

@@ -816,7 +816,6 @@ nav:
                 - 8. Update REST: update_and_migration/from_2.5/update_code/8_update_rest.md
                 - 9. Other code updates: update_and_migration/from_2.5/update_code/9_update_other.md
             - Update to v3.3: update_and_migration/from_2.5/to_3.3.md
-            - Update to latest v3.3: update_and_migration/from_3.3/update_from_3.3.md
         - Update from v3.3:
             - Update to v3.3.latest: update_and_migration/from_3.3/update_from_3.3.md
             - Update to v4.0: update_and_migration/from_3.3/to_4.0.md