Remove some dead data handler coder (#787)
Remove some dead data handler coder (#787)


danvk/dygraphs,reinert/dygraphs,reinert/dygraphs,reinert/dygraphs,reinert/dygraphs,danvk/dygraphs,danvk/dygraphs,reinert/dygraphs,danvk/dygraphs,danvk/dygraphs