Fix NT start after NT3 removal

Author: ThadHouse

src/ntcore/Natives/NtCore.ClientServer.cs

@@ -24,7 +24,7 @@ public static partial class NtCore
 
     [LibraryImport("ntcore", EntryPoint = "NT_StartServer")]
     [UnmanagedCallConv(CallConvs = [typeof(CallConvCdecl)])]
-    public static partial void StartServer(NtInst inst, WpiString persistFilename, WpiString listenAddres, uint port3, uint port4);
+    public static partial void StartServer(NtInst inst, WpiString persistFilename, WpiString listenAddres, uint port);
 
     [LibraryImport("ntcore", EntryPoint = "NT_StopServer")]
     [UnmanagedCallConv(CallConvs = [typeof(CallConvCdecl)])]

src/ntcore/NetworkTableInstance.cs

@@ -64,9 +64,7 @@ public static NetworkTableInstance GetInstanceForHandle(NtInst inst)
     private readonly ConcurrentDictionary<NtTopic, Topic> m_topicsByHandle = new();
     private readonly ListenerStorage m_listeners;
     private readonly bool m_owned;
-
-    public const int KDefaultPort3 = 1735;
-    public const int KDefaultPort4 = 5810;
+    public const int KDefaultPort = 5810;
 
     private NetworkTableInstance(NtInst inst, bool owned)
     {
@@ -483,9 +481,9 @@ public void StopLocal()
         NtCore.StopLocal(Handle);
     }
 
-    public void StartServer(string persistFilename = "networktables.json", string listenAddress = "", int port3 = KDefaultPort3, int port4 = KDefaultPort4)
+    public void StartServer(string persistFilename = "networktables.json", string listenAddress = "", int port = KDefaultPort)
     {
-        NtCore.StartServer(Handle, persistFilename, listenAddress, (uint)port3, (uint)port4);
+        NtCore.StartServer(Handle, persistFilename, listenAddress, (uint)port);
     }
 
     public void StopServer()