Hi,do you mean you want to remove the layout button and sort order toolbar?if yes,you need to edit the category tpl file in view/default_html5/template/pages/product/category.tpl.and remove the foloowing code :
<!-- Sorting + pagination-->
<div class="sorting well">
<form class=" form-inline pull-left">
<?php echo $text_sort; ?> <?php echo $sorting; ?>
</form>
<div class="btn-group pull-right">
<button class="btn" id="list"><i class="icon-th-list"></i>
</button>
<button class="btn btn-orange" id="grid"><i class="icon-th icon-white"></i></button>
</div>
</div>
<!-- end sorting-->
Hpe it helps.