remove dead code from section.rb
remove dead code from section.rb

CDLUC3/dmptool,DMPRoadmap/roadmap,DigitalCurationCentre/roadmap,DigitalCurationCentre/roadmap,CDLUC3/dmptool,DMPRoadmap/roadmap,CDLUC3/dmptool,DMPRoadmap/roadmap,CDLUC3/dmptool,DigitalCurationCentre/roadmap