wp_unregister_sidebar_widget( int|string $id )

Source

function wp_unregister_sidebar_widget( $id ) {

	/**
	 * Fires just before a widget is removed from a sidebar.
	 *
	 * @since 3.0.0
	 *
	 * @param int|string $id The widget ID.
	 */
	do_action( 'wp_unregister_sidebar_widget', $id );

	wp_register_sidebar_widget( $id, '', '' );
	wp_unregister_widget_control( $id );
}

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