removePhrase(name) {
    for (var i in this.phrases) {
      if (this.phrases[i].name === name) {
        this.phrases.splice(i, 1);
      }
    }
  }
Remove a phrase from this part, based on the name it was
 given when it was created.

 @method  removePhrase
 @for p5.Part
 @param  {String} phraseName