Ensure "builtinPlugins" in "setup.py" is accurate
Ensure "builtinPlugins" in "setup.py" is accurate

This does not matter for the current logic, but guards against future reuse
of this variable.

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