Remove grid line in Combo Chart

[gm198808]

Dear all,

I want to remove the grid line like the red part in below capture in combo chart.

I can only find a solution to change the the Y Axis Scale value to "Wide" to reduce the line. 

I also try to use SenseUI-ComboChart extension, but the Y Axis and X Axis label cannot remove like below capture.

 

Is there any method to remove the grid line,Y Axis label and X Axis label for Combo Chart at the same time?