message: removing unused conditionals
diff: @@ -303,11 +303,9 @@ define(["Tone/core/Tone", "Tone/type/Type"], function (Tone) {
  Tone.IntervalTimeline.prototype.forEach = function(callback){
  if (this._root !== null){
  var allNodes = [];
  - if (this._root !== null){
  this._root.traverse(function(node){
  allNodes.push(node);
  });
  - }
  for (var i = 0; i < allNodes.length; i++){
  var ev = allNodes[i].event;
  if (ev){
  @@ -352,11 +350,9 @@ define(["Tone/core/Tone", "Tone/type/Type"], function (Tone) {
  this._root.searchAfter(time, results);
  for (var i = results.length - 1; i >= 0; i--){
  var ev = results[i].event;
  - if (ev){
  callback(ev);
  }
  }
  - }
  return this;
  };
  