An option to disable the domain line

[mbostock]

The g.select(".domain").remove() pattern here is frequent:

svg.append("g")
      .attr("transform", `translate(${marginLeft},0)`)
      .call(yAxis)
      .call(g => g.select(".domain").remove())

It’d be nice if we could prevent the axis from creating that in the first place, especially for transitions.

[curran]

It is frequent indeed. I do this all the time. An option to disable it would be very nice!