theme folder -> manufacturer-list.tpl
To remove top scrool, around line 70, delete the following:
<div class="top-pagination-content clearfix bottom-line">
{include file="$tpl_dir./pagination.tpl" no_follow=1}
</div>
For the bottom one,
Delete around line 153
<div class="content_sortPagiBar">
<div class="bottom-pagination-content clearfix">
{include file="$tpl_dir./pagination.tpl" no_follow=1 paginationId='bottom'}
</div>
</div>
To disable Sortibar Delete around line 51:
<div class="content_sortPagiBar">
<div class="sortPagiBar clearfix">
{if isset($manufacturer) && isset($manufacturer.nb_products) && $manufacturer.nb_products > 0}
<ul class="display hidden-xs">
<li class="display-title">
{l s='View:'}
</li>
<li id="grid">
<a rel="nofollow" href="#" title="{l s='Grid'}">
<i class="icon-th-large"></i>{l s='Grid'}
</a>
</li>
<li id="list">
<a rel="nofollow" href="#" title="{l s='List'}">
<i class="icon-th-list"></i>{l s='List'}
</a>
</li>
</ul>
{/if}
{include file="./nbr-product-page.tpl"}
</div></div> <!-- .content_sortPagiBar -->