<?php

function dg_enqueue_scripts() {

    // Dequeue na .css na nekoj specificen page template
    if(is_page_template('page-apples.php')) {
       wp_dequeue_style('oranges');
    }

    // Dequeue na .css na nekoja specificna strana po ID.
    if(is_page(2323)) {
       wp_dequeue_style('other handle');
    }

    // Dequeue na .css na single blog post strana
    if(is_singular('post')) {
       wp_dequeue_style('some other handle');
    }

}
add_action('wp_enqueue_scripts', 'dg_dequeue_scripts');