removed CSV listing if not CSV present

when reading sources, CSV file were being listed as 'none' when going
through the loop and no file was present. commented that part out so
'none' is not being repeated

resources/views/front/about.blade.php

@@ -40,7 +40,9 @@
                         @if($source->format == 'csv')
                             <li><a href="{{$source->url}}">{{$source->url}}</a></li>
                         @else
+                            <!--
                             <li>None</li>
+                            -->
                         @endif
                     @endforeach
                 </ul>