title: C3js: How to hide ticks on y-axis? Y-Axis label is cut off
body: <p>How can I hide the ticks on the y-axis?</p>
  <p>I currently achieve it by editing <code>tick.format</code>, as can be seen in this JSFiddle <a href="http://jsfiddle.net/DanielApt/bq17Lp02/1/" rel="noreferrer">http://jsfiddle.net/DanielApt/bq17Lp02/1/</a></p>
  <p>I'm not happy with this solution, as the y-axis label is being cut off</p>
  <p><img src="https://i.stack.imgur.com/ZLSBn.png" alt="Screenshot showing the y-axis label is being cut off" /></p>
  <p>So how can I hide ticks without having y-axis label being cut off?</p>
  <p>Thank you for your help in advance!</p>