Remove bower dependencies due to UMD build
Remove bower dependencies due to UMD build

chcokr/mdast,yukkurisinai/mdast,tanzania82/remarks,yukkurisinai/mdast,eush77/remark,wooorm/remark,chcokr/mdast,ulrikaugustsson/mdast,ulrikaugustsson/mdast,eush77/remark