Remove short link

Unfortunately the yg.gl domain expired

client/index.html

@@ -54,7 +54,6 @@
     <x-peers class="center"></x-peers>
     <x-no-peers>
         <h2>Open Snapdrop on other devices to send files.</h2>
-        <div class="font-body1">Short link: <a href="http://yg.gl">yg.gl</a></div>
     </x-no-peers>
     <x-instructions desktop="Click to send files or right click to send a message." mobile="Tap to send files or long tap to send a message."></x-instructions>
     <!-- Footer -->
@@ -210,4 +209,4 @@
         }
         </style>
     </noscript>
-</body>
+</body>