fix display of device name in details panels

Netdisco/lib/App/Netdisco/Web/Device.pm

@@ -176,7 +176,6 @@ get '/device' => require_login sub {
 
     params->{'tab'} ||= 'details';
     template 'device', {
-      d => $dev,
       display_name => ($others ? $first->ip : $first->dns),
       device => params->{'tab'},
     };

Netdisco/share/views/device.tt

@@ -39,7 +39,7 @@
       <li[% ' class="active"' IF params.tab == tab.tag %]><a id="[% tab.tag %]_link" href="#[% tab.tag %]_pane">[% tab.label %]</a></li>
       [% END %]
       <span id="nd_device-name">
-        [% d.dns || d.name | html_entity %]
+        [% display_name | html_entity %]
         <a id="nd_csv-download" href="#" download="netdisco.csv">&nbsp;
           <i id="nd_csv-download-icon" class="text-info icon-file-text-alt icon-large"
             rel="tooltip" data-placement="left" data-offset="5" data-title="Download as CSV"></i></a>