Remove pie animation

src/arc.js

@@ -265,8 +265,7 @@ c3_chart_internal_fn.redrawArc = function (duration, durationForExit, withTransf
         .attr("transform", withTransform ? "scale(0)" : $$.wrapExplode())
         .style("opacity", function (d) { return d === this._current ? 0 : 1; })
         .each(function () { $$.transiting = true; })
-        .transition().duration(duration)
-        .attrTween("d", function (d) {
+        .attr("d", function (d) {
             var updated = $$.updateAngle(d), interpolate;
             if (! updated) {
                 return function () { return "M 0 0"; };
@@ -276,20 +275,15 @@ c3_chart_internal_fn.redrawArc = function (duration, durationForExit, withTransf
             }
             interpolate = d3.interpolate(this._current, updated);
             this._current = interpolate(0);
-            return function (t) {
-                var interpolated = interpolate(t);
-                interpolated.data = d.data; // data.id will be updated by interporator
-                return $$.getArc(interpolated, true);
-            };
+            var interpolated = interpolate(1);
+            interpolated.data = d.data; // data.id will be updated by interporator
+            return $$.getArc(interpolated, true);
         })
         .attr("transform", withTransform ? "scale(1)" : $$.wrapExplode())
         .style("fill", function (d) {
             return $$.levelColor ? $$.levelColor(d.data.values[0].value) : $$.color(d.data.id);
         }) // Where gauge reading color would receive customization.
-        .style("opacity", 1)
-        .call($$.endall, function () {
-            $$.transiting = false;
-        });
+        .style("opacity", 1);
     mainArc.exit().transition().duration(durationForExit)
         .style('opacity', 0)
         .remove();