Removing colorAxis

[PaulDalek]

Behaviour

Trying to remove colorAxis results in ‘chart.options[key].splice is not a function’ error.

Live demo

http://jsfiddle.net/d_paul/agj45fas/

[TorsteinHonsi]

If we replace the failing code in Axis.remove with the following, we don't get the error message. But there's still a problem with the legend symbol remaining.

		if (H.isArray(chart.options[key])) {
			chart.options[key].splice(this.options.index, 1);
		} else {
			delete chart.options[key];
		}

[TorsteinHonsi]

Thanks @sebastianbochan. FYI, I modified your fix by removing the legend item belonging to the color axis, not the whole legend.