[dotnet] Properly close test web server without delays

Author: nvborisenko

dotnet/test/common/Environment/TestWebServer.cs

@@ -150,34 +150,8 @@ public void Start()
 
         public void Stop()
         {
-            HttpWebRequest request = WebRequest.Create(EnvironmentManager.Instance.UrlBuilder.LocalWhereIs("quitquitquit")) as HttpWebRequest;
-            try
-            {
-                request.GetResponse();
-            }
-            catch (WebException)
-            {
-            }
-
-            if (webserverProcess != null)
-            {
-                try
-                {
-                    webserverProcess.WaitForExit(10000);
-                    if (!webserverProcess.HasExited)
-                    {
-                        webserverProcess.Kill();
-                    }
-                }
-                catch (Exception)
-                {
-                }
-                finally
-                {
-                    webserverProcess.Dispose();
-                    webserverProcess = null;
-                }
-            }
+            webserverProcess.Dispose();
+            webserverProcess = null;
         }
     }
 }