Revert "set up _fillMissingData function for column chart to deal with trell #984"
Revert "set up _fillMissingData function for column chart to deal with trell #984"

This reverts commit bfa7b0430910964af2754b679c542ca26b0fd9ed.

unicef/rhizome,unicef/rhizome,unicef/rhizome,unicef/rhizome