[glib-networking] Revert "Fix intermittent failures in missing client private key test"

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 2533f9d5a66fe99d3b3c37bfacd634f158d9bdd1
Author: Michael Catanzaro <mcatanzaro posteo net>
Date:   Tue Jul 24 21:52:40 2018 +0000

    Revert "Fix intermittent failures in missing client private key test"
    
    This reverts commit 55daf3e5fd4bc9e4ebad1a9eab93f852dcbf527e

 tls/tests/connection.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/tls/tests/connection.c b/tls/tests/connection.c
index 390275d..94645c3 100644
--- a/tls/tests/connection.c
+++ b/tls/tests/connection.c
@@ -1125,6 +1125,7 @@ test_client_auth_fail_missing_client_private_key (TestConnection *test,
   g_main_loop_run (test->loop);
 
   g_assert_error (test->read_error, G_TLS_ERROR, G_TLS_ERROR_CERTIFICATE_REQUIRED);
+  g_assert_no_error (test->server_error);
 }
 
 static void