refs #18469 [fid_bbi] remove old mentions

* of Bettina Gierke
* and of Sebastian Kehr

themes/fid_bbi/templates/content/about-en.phtml

@@ -9,10 +9,10 @@
     <br/>
     <p><strong><span>Who are we?</span></strong></p>
     <p><span>Project leader: Dr. Johannes Mangei (HAB)</span></p>
-    <p><span>Project coordination: Bettina Gierke (HAB)</span></p>
+    <p><span>Project coordination: N. N.</span></p>
     <p><span>IT: Dorian Merz (HAB)</span></p>
     <p><span>Librarian: Julia Landsberg (HAB)</span></p>
-    <p><span>Software developer: Sebastian Kehr (UBL)</span></p>
+    <p><span>Software developer: N. N.</span></p>
     <br/>
     <p><strong><span>Advisory Board</span></strong></p>
     <p><a href="https://www.fh-potsdam.de/person/person-action/hans-christoph-hobohm/show/Person/" target="_blank"><span>Prof. Dr. Hans-Christoph Hobohm</span></a><span> (Fachhochschule Potsdam; Hochschulverband Informationswissenschaft (HI))</span></p>

themes/fid_bbi/templates/content/about.phtml

@@ -9,10 +9,10 @@
     <br/>
     <p><strong><span>Wer sind wir?</span></strong></p>
     <p><span>Projektleitung: Dr. Johannes Mangei (HAB)</span></p>
-    <p><span>Projektkoordination: Bettina Gierke (HAB)</span></p>
+    <p><span>Projektkoordination: N. N.</span></p>
     <p><span>wissenschaftliche IT: Dorian Merz (HAB)</span></p>
     <p><span>Bibliothekarin: Julia Landsberg (HAB)</span></p>
-    <p><span>Softwareentwickler: Sebastian Kehr (UBL)</span></p>
+    <p><span>Softwareentwickler: N. N.</span></p>
     <br/>
     <p><strong><span>Wissenschaftlicher Beirat</span></strong></p>
     <p><a href="https://www.fh-potsdam.de/person/person-action/hans-christoph-hobohm/show/Person/" target="_blank"><span>Prof. Dr. Hans-Christoph Hobohm</span></a><span> (Fachhochschule Potsdam; Hochschulverband Informationswissenschaft (HI))</span></p>

themes/fid_bbi/templates/footer.phtml

@@ -21,8 +21,7 @@
     <div class="footer-column">
       <p><strong><?=$this->transEsc('Contact')?></strong></p>
       <p>
-        <?=$this->transEsc('Project Coordination')?>: Bettina Gierke<br/>
-        <?=$this->transEsc('Phone Number')?>: +49 5331 808-321<br/>
+        <?=$this->transEsc('Project Coordination')?>: N. N.<br/>
         <?=$this->transEsc('Email')?>: <a data-lightbox href="<?=$this->url('feedback-home')?>">fid@hab.de</a></p>
     </div>
       <?php if ($this->permission()->allowDisplay('fid.ReadList')): ?>