_removeManipulationDOM() {
    // removes all the bindings and overloads
    this._clean();

    // empty the manipulation divs
    recursiveDOMDelete(this.manipulationDiv);
    recursiveDOMDelete(this.editModeDiv);
    recursiveDOMDelete(this.closeDiv);

    // remove the manipulation divs
    if (this.manipulationDiv) {
      this.canvas.frame.removeChild(this.manipulationDiv);
    }
    if (this.editModeDiv) {
      this.canvas.frame.removeChild(this.editModeDiv);
    }
    if (this.closeDiv) {
      this.canvas.frame.removeChild(this.closeDiv);
    }

    // set the references to undefined
    this.manipulationDiv = undefined;
    this.editModeDiv = undefined;
    this.closeDiv = undefined;
  }
Remove all DOM elements created by this module.
@private