if( !function_exists( 'marstheme_excluding_sticky_posts' ) ){
    function marstheme_excluding_sticky_posts( $query ) {
        if( !is_admin() && $query->is_main_query() ){
            $query->set( 'ignore_sticky_posts', true );
        }
    }
    add_action( 'pre_get_posts' , 'marstheme_excluding_sticky_posts', 10, 1);
}