move onion address to nginx header

backend/app/templates/base.html

@@ -22,7 +22,6 @@
 
 		</nav>
 		<h2>oily.dad</h2>
-		<h5>oilydada7ckiseinkbeathsefwgkvjrce743xy7x7iiybkuxh4vheead.onion</h5>
 		</header>
 		<hr>
 		{% with messages = get_flashed_messages() %}