Remove the dependencies section of the ansible role docs
Remove the dependencies section of the ansible role docs

This was left behind from the older version of the role, there are no
dependencies of the current role.

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