<?php $removecats = get_option('ombre_removecats'); ?>
<?php if ($removecats != 'true') { ?>
<ul class="ombre-menu">
    <li id="ombre-menu-title"><?php echo esc_html__( 'CATEGORIES', 'ombre'); ?></li>
    <?php 
    $args = array('type' => 'post'); 
    $post_categories = get_categories( $args );
        foreach($post_categories as $c){
            $cat_name = $c->name;
            $cat_id = $c->cat_ID;
            $cat_url = get_category_link( $cat_id );
    ?>
    <li><a href="<?php echo esc_url($cat_url); ?>"><?php echo esc_html($cat_name); ?></a></li>
    <?php } ?>
</ul>
<?php } ?>