header: remove demo site banner

templates/semantic-ui/zenodo_rdm/header.html

@@ -9,7 +9,7 @@
   #
   # Zenodo is distributed in the hope that it will be
   # useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
-  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   # General Public License for more details.
   #
   # You should have received a copy of the GNU General Public License
@@ -23,12 +23,3 @@
   -#}
 
 {%- extends "invenio_app_rdm/header.html" %}
-
-{%- block site_banner %}
-  <div class="ui warning flashed top attached manage mb-0 message">
-    <div class="ui container">
-      🚀 <b>ZenodoRDM</b>: This is a demo site of Zenodo's next-generation platform based on InvenioRDM.
-      <a href="https://blog.zenodo.org/2022/12/07/2022-12-07-zenodo-on-inveniordm/"><b> Learn more</b></a>.
-    </div>
-  </div>
-{% endblock site_banner %}