code: function() {
  			var children = this.parent.children,
  				index = CKEDITOR.tools.indexOf( children, this ),
  				previous = this.previous,
  				next = this.next;
  
  			previous && ( previous.next = next );
  			next && ( next.previous = previous );
  			children.splice( index, 1 );
  			this.parent = null;
  		}
docs: Remove this node from a tree.
  
  @since 4.1