code: function(featureId) {
          var label = document.getElementById(featureId + this.LABEL_ID_SUFFIX);
          if (label) {
              this.textRoot.removeChild(label);
          }
          var outline = document.getElementById(featureId + this.LABEL_OUTLINE_SUFFIX);
          if (outline) {
              this.textRoot.removeChild(outline);
          }
      }
docs: Method: removeText
  Removes a label
  
  Parameters:
  featureId - {String}