theme: remove blog breadcrumb section

Agent-Logs-Url: https://github.com/readthedocs/website/sessions/8444967c-7a3b-4d9b-be21-eebd2819cd76

Co-authored-by: ericholscher <25510+ericholscher@users.noreply.github.com>

Author: Copilot

readthedocs_theme/templates/index.html

@@ -41,19 +41,6 @@
 {% block title%} Blog - Read the Docs {% endblock %}
 
 {% block content %}
-
-  <section>
-    <div class="ui padded container">
-      {% block content_breadcrumbs %}
-        <div class="ui breadcrumb">
-          <a class="section" href="/">Home</a>
-          <div class="divider"> / </div>
-          <div class="active section">Blog</div>
-        </div>
-      {% endblock content_breadcrumbs %}
-    </div>
-  </section>
-
   <section>
     <div class="ui padded container">