message: fix(svg/painter): comment unused code.
diff: @@ -278,7 +278,7 @@ class SVGPainter implements PainterBase {
  let currentClipGroup;
  for (let i = 0; i < diff.length; i++) {
  const item = diff[i];
  - const isAdd = item.added;
  + // const isAdd = item.added;
  if (item.removed) {
  continue;
  }
  