Header: Remove contact button

Author: rleh

_includes/header.html

@@ -8,11 +8,9 @@
         <div class="col-lg-6 col-12 pt-10 d-flex flex-column">
           <p class="mt-auto mb-n4">
             <span class="mr-5">Die studentischen technischen Vereinen in Aachen.</span>
-            <a href="contact.html" class="btn btn-secondary btn-lg page-scroll mt-n4">Kontakt</a></p>
         </div>
       </div>
       <div class="d-flex flex-row-reverse p-5">
-
       </div>
     </div>
   </div>