removed csis courses that are no longer offered from index.rst, individual rst files still exist for now
removed csis courses that are no longer offered from index.rst, individual rst files still exist for now

klaeufer/coursedescriptions,briangathright/coursedescriptions,Riels07/coursedescriptions,LoyolaChicagoCS/coursedescriptions,Riels07/coursedescriptions,Riels07/coursedescriptions,tombiju/coursedescriptions,klaeufer/coursedescriptions,tombiju/coursedescriptions,briangathright/coursedescriptions,tombiju/coursedescriptions,briangathright/coursedescriptions,Riels07/coursedescriptions,klaeufer/coursedescriptions,klaeufer/coursedescriptions,tombiju/coursedescriptions,LoyolaChicagoCS/coursedescriptions,LoyolaChicagoCS/coursedescriptions,briangathright/coursedescriptions