Fix browser cookie tests to only run with HTTPS (#39665)

Author: BrennanConroy

src/SignalR/clients/ts/FunctionalTests/EchoConnectionHandler.cs

@@ -4,20 +4,13 @@
 using System.Buffers;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Connections;
-using Microsoft.AspNetCore.Http.Connections;
 
 namespace FunctionalTests
 {
     public class EchoConnectionHandler : ConnectionHandler
     {
         public async override Task OnConnectedAsync(ConnectionContext connection)
         {
-            var context = connection.GetHttpContext();
-            // The 'withCredentials' tests wont send a cookie for cross-site requests
-            if (!context.WebSockets.IsWebSocketRequest && !context.Request.Cookies.ContainsKey("testCookie"))
-            {
-                return;
-            }
 
             while (true)
             {