+ // Remove this menu from any locations.
+ $locations = get_theme_mod( 'nav_menu_locations' );
+ foreach ( (array) $locations as $location => $menu_id ) {
+ if ( $menu_id == $menu->term_id )
+ $locations[ $location ] = 0;
+ }
+ set_theme_mod( 'nav_menu_locations', $locations );
+