title: How to hide the colorbar and legend in plotly express bar graph?
body: <p>I am creating a bar graph with something like this:</p>
  
  <pre><code>px.bar(df, x=x, y=y, color=c,
         title=params['title'], 
         hover_data=hover_data)
  </code></pre>
  
  <p>When <code>c != None</code> the graph produces either a legend or a colorbar. How can I remove either of them?</p>