am 7862ba29: am 6c8b80ac: Merge "Removing three obsolete lessons from TOC, which in turn removes them from building-userinfo.jd when built." into lmp-docs

* commit '7862ba297f7106ef0208e8f1dbbe9f9e35c63485':
  Removing three obsolete lessons from TOC, which in turn removes them from building-userinfo.jd when built.