Use same queue for batch ops and for shutdown in h2_ssl_cert_test

test/core/end2end/h2_ssl_cert_test.cc

@@ -57,8 +57,6 @@ static grpc_end2end_test_fixture chttp2_create_fixture_secure_fullstack(
 
   f.fixture_data = ffd;
   f.cq = grpc_completion_queue_create_for_next(nullptr);
-  f.shutdown_cq = grpc_completion_queue_create_for_pluck(nullptr);
-
   return f;
 }
 
@@ -283,14 +281,11 @@ static void shutdown_server(grpc_end2end_test_fixture* f) {
    * thread for the server to poll the completion queue while the shutdown
    * progresses.)
    */
-  GPR_ASSERT(grpc_completion_queue_next(
-                 f->cq, grpc_timeout_milliseconds_to_deadline(100), nullptr)
-                 .type == GRPC_QUEUE_TIMEOUT);
-  grpc_server_shutdown_and_notify(f->server, f->shutdown_cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->shutdown_cq, tag(1000),
-                                         grpc_timeout_seconds_to_deadline(5),
-                                         nullptr)
-                 .type == GRPC_OP_COMPLETE);
+  grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
+  grpc_event ev = grpc_completion_queue_next(
+      f->cq, grpc_timeout_seconds_to_deadline(5), nullptr);
+  ASSERT_EQ(ev.type, GRPC_OP_COMPLETE);
+  ASSERT_EQ(ev.tag, tag(1000));
   grpc_server_destroy(f->server);
   f->server = nullptr;
 }
@@ -308,7 +303,6 @@ static void end_test(grpc_end2end_test_fixture* f) {
   grpc_completion_queue_shutdown(f->cq);
   drain_cq(f->cq);
   grpc_completion_queue_destroy(f->cq);
-  grpc_completion_queue_destroy(f->shutdown_cq);
 }
 
 static void simple_request_body(grpc_end2end_test_fixture f,