Class docstrings were being pulled in to multiple locations, causing
sphinx errors due to the duplicate references. This fixes it by adding
the :noindex: option to those references.
Also temporarily disabling the PDF build as that is failing with another
issue that should be fixed in a follow up.
Change-Id: I6de2948ff49e1bb0b6a8b9a3a90f9f2ebbb8b7bb
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>
3dccfc7643