Method _removeDD

src/gridstack.ts:2397–2404

@internal removes any drag&drop present (called during destroy)

(el: DDElementHost)

  /** @internal removes any drag&drop present (called during destroy) */
  protected _removeDD(el: DDElementHost): GridStack {
    dd.draggable(el, 'destroy').resizable(el, 'destroy');
    if (el.gridstackNode) {
      delete el.gridstackNode._initDD; // reset our DD init flag
    }
    delete el.ddElement;
    return this;
  }

  /** @internal called to add drag over to support widgets being added externally */
  protected _setupAcceptWidget(): GridStack {