code: function(items) {
              items = $.makeArray(items);
  
              for (var i = 0; i < items.length; i++) {
                  var item = items[i];
  
                  // Make sure we actually know about this item
                  var index = $.inArray(item, this.$items);
                  if (index !== -1) {
                      this._deinitItem(item);
                      this.$items.splice(index, 1);
                  }
              }
          }
docs: Remove Items
  
  @param {object} items Elements that should no longer be draggable.