como retirar o header do flexmonster?

Hello,
 
Thank you for posting on our forum.
 
The desired result can be achieved by setting both chart.showMeasures and chart.showFilter properties of the Options Object to false. Here is the JSFiddle for reference: https://jsfiddle.net/flexmonster/w029etxb/.
 
Please let us know if it works for you.
 
Regards,
Illia