remove unused variables
remove unused variables

rubensfernando/datawrapper,datafunk/datawrapper,datafunk/datawrapper,devinit/datawrapper,motherjones/datawrapper,elaOnMars/datawrapper,plusgut/datawrapper,rubensfernando/datawrapper,devinit/datawrapper,ThuyNTran/datawrapper,motherjones/datawrapper,kendrick-k/datawrapper,devinit/datawrapper,ThuyNTran/datawrapper,kendrick-k/datawrapper,qqming113/datawrapper,robmcloughlin/Insights,ThuyNTran/datawrapper,robmcloughlin/Insights,qqming113/datawrapper,elaOnMars/datawrapper,washingtonpost/datawrapper,elaOnMars/datawrapper,washingtonpost/datawrapper,plusgut/datawrapper,devinit/datawrapper,washingtonpost/datawrapper,ThuyNTran/datawrapper,motherjones/datawrapper,kendrick-k/datawrapper,robmcloughlin/Insights,washingtonpost/datawrapper,rubensfernando/datawrapper,grepman/datawrapper,datafunk/datawrapper,motherjones/datawrapper,ThuyNTran/datawrapper,datafunk/datawrapper,grepman/datawrapper,rubensfernando/datawrapper,devinit/datawrapper,devinit/datawrapper,elaOnMars/datawrapper,robmcloughlin/Insights,grepman/datawrapper,plusgut/datawrapper,qqming113/datawrapper,grepman/datawrapper,ThuyNTran/datawrapper,qqming113/datawrapper,kendrick-k/datawrapper,qqming113/datawrapper,datafunk/datawrapper,grepman/datawrapper,washingtonpost/datawrapper,kendrick-k/datawrapper,elaOnMars/datawrapper,motherjones/datawrapper,kendrick-k/datawrapper,rubensfernando/datawrapper,washingtonpost/datawrapper,plusgut/datawrapper,grepman/datawrapper,datafunk/datawrapper,elaOnMars/datawrapper,qqming113/datawrapper,robmcloughlin/Insights,motherjones/datawrapper