let drawTicks method empty ticks on exit
      #6165
    
    
                
   Merged
            
            
          
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When
ax.ticksis empty, thedrawTicksmethod did not get called to remove ticks on exit here:plotly.js/src/plots/cartesian/axes.js
Lines 2842 to 2845 in 646dfd6
This PR fixes that by calling
drawTicksregardless ofax.ticksvalue.cc: @plotly/plotly_js