OEL-1618: Remove title_tag when default 'h2'.

templates/content/field--node--body--oe-sc-event.html.twig

@@ -36,7 +36,6 @@
     {%- endset -%}
     {% include '@oe-bcl/bcl-heading/heading.html.twig' with {
       title: _label,
-      title_tag: 'h2',
       attributes: create_attribute().addClass(title_classes)
     } only %}
     {% if multiple %}

templates/content/field--node--oe-documents--oe-sc-event.html.twig

@@ -36,7 +36,6 @@
     {%- endset -%}
     {% include '@oe-bcl/bcl-heading/heading.html.twig' with {
       title: _label,
-      title_tag: 'h2',
       attributes: create_attribute().addClass(title_classes)
     } only %}
     {% if multiple %}