Remove Orb.live link in header

Author: rboucher-me

overrides/partials/header.html

@@ -155,14 +155,5 @@
         {% include "partials/source.html" %}
       </div>
     {% endif %}
-
-    <a
-    href="http://orb.live"
-    title="login"
-    target="_blank"
-    class="md-button md-button--primary login"
-  >
-    Login to Orb.live
-  </a>
   </nav>
 </header>