clean up config checker
clean up config checker

MichMich/MagicMirror,Tyvonne/MagicMirror,Tyvonne/MagicMirror,Tyvonne/MagicMirror,Tyvonne/MagicMirror,MichMich/MagicMirror,MichMich/MagicMirror,MichMich/MagicMirror