Dragging a viewzone lags behind

[bpasero]

Steps to Reproduce:

1. open a find references view zone
2. drag it quickly up and down to resize

=> notice how the viewzone lags quit a bit in updating and even the editor text sometimes goes behind the viewzone

[alexdima]

Root cause is:

https://github.com/Microsoft/vscode/blob/a8839f858e6c7001262d8219da7593dd28cbdcf9/src/vs/editor/contrib/referenceSearch/media/referencesWidget.css#L12:L16

.monaco-editor .zone-widget .zone-widget-container.reference-zone-widget.results-loaded {
	-webkit-transition: height 100ms ease-in;
	transition: height 100ms ease-in;
}

@jrieken Blame does not help, as it looks we've had this forever. Should we just remove this rule?

[bpasero]

This is very old:

[jrieken]

Yeah, lets nuke it