title: hide YAxis values in HighChart Solid Gauge
body: <p>In the below example, is it possible to "hide" the Y Axis values - for example - do not show the 0 and the 200 (in the left).
  Looking for cleaner chart..</p>
  
  <p><a href="http://www.highcharts.com/demo/gauge-solid/dark-unica" rel="nofollow">http://www.highcharts.com/demo/gauge-solid/dark-unica</a></p>