D3 graph with 3 sides?

I am creating a d3 contour graph with the d3-contour plugin. I am creating grid lines using the tickSize function e.g.

 const yAxis = d3.axisLeft(yScale).ticks(4).tickSize(-dimensions.width);

However - I only want the grid borders to be on the top, bottom and right hand side. Not on the left at all. Is there a way to do this?

Thanks!