remove obsolete comments, esp. about 3d pies

Author: alexcjohnson

src/traces/pie/defaults.js

@@ -34,14 +34,10 @@ module.exports = function supplyDefaults(traceIn, traceOut, defaultColor, layout
     if(lineWidth) coerce('marker.line.color');
 
     var colors = coerce('marker.colors');
-    if(!Array.isArray(colors)) traceOut.marker.colors = []; // later this will get padded with default colors
+    if(!Array.isArray(colors)) traceOut.marker.colors = [];
 
     coerce('scalegroup');
-    // TODO: tilt, depth, and hole all need to be coerced to the same values within a scaleegroup
-    // (ideally actually, depth would get set the same *after* scaling, ie the same absolute depth)
-    // and if colors aren't specified we should match these up - potentially even if separate pies
-    // are NOT in the same sharegroup
-
+    // TODO: hole needs to be coerced to the same value within a scaleegroup
 
     var textData = coerce('text');
     var textInfo = coerce('textinfo', Array.isArray(textData) ? 'text+percent' : 'percent');
@@ -63,14 +59,6 @@ module.exports = function supplyDefaults(traceIn, traceOut, defaultColor, layout
     coerce('domain.x');
     coerce('domain.y');
 
-    // 3D attributes commented out until I finish them in a later PR
-    // var tilt = coerce('tilt');
-    // if(tilt) {
-    //     coerce('tiltaxis');
-    //     coerce('depth');
-    //     coerce('shading');
-    // }
-
     coerce('hole');
 
     coerce('sort');