Remove TS3 server ID from metrics

We don't really use it for anything, so we don't need to collect it.

src/installer/pages/1.php

@@ -104,7 +104,7 @@
                     </li>
                     <li class="mb-1">
                         TeamSpeak server info (version, build number, host OS name, slot count,
-                        are you using serveradmin for query, server's unique ID)
+                        are you using serveradmin for query)
                     </li>
                 </ul>
             </div>

src/installer/pages/7.php

@@ -46,7 +46,6 @@ if(!empty($_COOKIE["tsw_allow_metrics"])) {
             $tsInfo = $tsAdmin->getInfo();
 
             $data["ts"] = [
-                "uid" => (string) $tsInfo["virtualserver_unique_identifier"],
                 "version" => (string) $tsInfo["virtualserver_version"],
                 "platform" => (string) $tsInfo["virtualserver_platform"],
                 "slotCount" => $tsInfo["virtualserver_maxclients"],