Remove generators from vertical playground. Re GH-304
Remove generators from vertical playground. Re GH-304

sclements/scratch-blocks,griffpatch/scratch-blocks,gengshenghong/scratch-blocks,sclements/scratch-blocks,sclements/scratch-blocks,gengshenghong/scratch-blocks,griffpatch/scratch-blocks,LLK/scratch-blocks,LLK/scratch-blocks,griffpatch/scratch-blocks,gengshenghong/scratch-blocks,sclements/scratch-blocks,LLK/scratch-blocks,LLK/scratch-blocks,LLK/scratch-blocks,sclements/scratch-blocks,griffpatch/scratch-blocks,gengshenghong/scratch-blocks,griffpatch/scratch-blocks,gengshenghong/scratch-blocks