Unit test improvement

src/Participants/SiteServer.cs

@@ -18,7 +18,6 @@ namespace RoboidControl {
         /// <param name="port">The port of which to receive the messages</param>
         public SiteServer(int port = 7681) : base(port) {
             this.name = "Site Server";
-            Participant.AddParticipant(this);
 
             // Determine local IP address
             IPAddress localIpAddress = null;

test/UnitTest1.cs

@@ -29,7 +29,7 @@ namespace RoboidControl.test {
 
         [Test]
         public void Test_SiteServer() {
-            SiteServer siteServer = new SiteServer(7681);
+            SiteServer siteServer = new();
 
             ulong milliseconds = (ulong)DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
             ulong startTime = milliseconds;