Remove comment about old version of Matplotlib

Original: 38ed372e3eda2f83a1065a61878e1d7911b85f18

lalinference/python/bayestar_plot_allsky.py

@@ -135,8 +135,7 @@ for ra, dec in radecs:
         ra = plot.wrapped_angle(ra + dlon)
     ax.plot(ra, dec, '*', markerfacecolor='white', markeredgecolor='black', markersize=10)
 
-# If we are using a new enough version of matplotlib, then
-# add a white outline to all text to make it stand out from the background.
+# Add a white outline to all text to make it stand out from the background.
 plot.outline_text(ax)
 
 # Show or save output.

lalinference/python/bayestar_plot_pileup.py

@@ -81,8 +81,7 @@ for count_records, (color, fitsfilename) in enumerate(zip(colors, fitsfilenames)
 
 progress.update(-1, 'saving figure')
 
-# If we are using a new enough version of matplotlib, then
-# add a white outline to all text to make it stand out from the background.
+# Add a white outline to all text to make it stand out from the background.
 plot.outline_text(ax)
 
 opts.output()