removed unused dashboard spec
removed unused dashboard spec

lumenlearning/OpenAssessments,atomicjolt/OpenAssessments,atomicjolt/OpenAssessments,BYU-Open-Analytics/BYUOpenAssessments,atomicjolt/OpenAssessments,lumenlearning/OpenAssessments,BYU-Open-Analytics/BYUOpenAssessments,lumenlearning/OpenAssessments,atomicjolt/OpenAssessments,lumenlearning/OpenAssessments,BYU-Open-Analytics/BYUOpenAssessments,BYU-Open-Analytics/BYUOpenAssessments