remove TODO [ci skip]

xchart/src/main/java/com/xeiam/xchart/internal/chartpart/ChartPainter.java

@@ -109,7 +109,6 @@ public class ChartPainter {
 
     axisPair.paint(g);
     plot.paint(g);
-    // TODO why not just paint the title first and skip the size hinting?
     chartTitle.paint(g);
     chartLegend.paint(g);