How to remove icon-seperator in Material UI : DataGrid

I am using material UI Data Grid, I tried searching on web on How to remove icon-separator in material UI DataGrid but couldn’t find any references. How can we remove it, I don’t want them in my table header

>Solution :

Apply this style to the header

'& > .MuiDataGrid-columnSeparator': {
    visibility: 'hidden',
},