Remove docs for unsupported Heroku deployment
Remove docs for unsupported Heroku deployment

Xarthisius/girder,RafaelPalomar/girder,kotfic/girder,manthey/girder,kotfic/girder,adsorensen/girder,data-exp-lab/girder,Kitware/girder,girder/girder,kotfic/girder,manthey/girder,Kitware/girder,Xarthisius/girder,RafaelPalomar/girder,kotfic/girder,manthey/girder,girder/girder,adsorensen/girder,manthey/girder,Kitware/girder,data-exp-lab/girder,girder/girder,adsorensen/girder,RafaelPalomar/girder,adsorensen/girder,Xarthisius/girder,jbeezley/girder,girder/girder,Xarthisius/girder,jbeezley/girder,Xarthisius/girder,jbeezley/girder,jbeezley/girder,adsorensen/girder,kotfic/girder,Kitware/girder,data-exp-lab/girder,data-exp-lab/girder,RafaelPalomar/girder,data-exp-lab/girder,RafaelPalomar/girder