una/template/agents_comment_actions_assistant.html

<div class="__style_prefix__-actions mt-2">
    <a class="bx-btn bx-btn-small" href="javascript:void(0)" onclick="javascript:__js_object__.cmtRemove(this, __id__)">
        <bx_text:_sys_menu_item_title_cmts_item_delete />
    </a>
</div>