Revert of DevTools: Enable antialiasing in the pie chart.

Source/devtools/front_end/PieChart.js

Index: Source/devtools/front_end/PieChart.js
diff --git a/Source/devtools/front_end/PieChart.js b/Source/devtools/front_end/PieChart.js
index 048d324756a777c6a780d994be92cab6064faaf6..280806de2416c2b253e2e604830e22c0594531f9 100644
--- a/Source/devtools/front_end/PieChart.js
+++ b/Source/devtools/front_end/PieChart.js
@@ -65,8 +65,7 @@
     _innerAddSlice: function(sliceAngle, color)
     {
         var sliceElement = this.element.createChild("div", "pie-chart-slice");
-        // translate3d enables antialiasing for the slice.
-        sliceElement.style.webkitTransform = "translate3d(0, 0, 0) rotate(" + Number(this._lastAngle).toFixed(2) + "deg)"
+        sliceElement.style.webkitTransform = "rotate(" + Number(this._lastAngle).toFixed(2) + "deg)"
         var innerSliceElement = sliceElement.createChild("div", "pie-chart-slice-inner");
         innerSliceElement.style.backgroundColor = color;
         innerSliceElement.style.webkitTransform = "rotate(" + Number(sliceAngle).toFixed(2) + "deg)";