Remove unused validation spec from Theme spec
Remove unused validation spec from Theme spec

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