{% if Category.id is not same as(除外したいカテゴリID) %}
{% endif %}

{% set Categories = repository('Eccube\\Entity\\Category').getList() %}
{% macro tree(Category) %}
  {% from _self import tree %}
  <li>{{ Category.name }}</li>
{% endmacro %}
{% from _self import tree %}
{% for Category in Categories %}
{% if Category.id is not same as(1) %}
  <ul>
    {{ tree(Category) }}
  </ul>
{% endif %}
{% endfor %}