Revert "Added ability to request zone memory information for all isolates through the VM service an…

runtime/observatory/tests/service/get_zone_memory_info_rpc_test.dart

Index: runtime/observatory/tests/service/get_zone_memory_info_rpc_test.dart
diff --git a/runtime/observatory/tests/service/get_zone_memory_info_rpc_test.dart b/runtime/observatory/tests/service/get_zone_memory_info_rpc_test.dart
deleted file mode 100644
index 7d5f00452757b0fa556c6cc51ccffae1d2942b4f..0000000000000000000000000000000000000000
--- a/runtime/observatory/tests/service/get_zone_memory_info_rpc_test.dart
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-// VMOptions=--error_on_bad_type --error_on_bad_override
-
-import 'package:observatory/service_io.dart';
-import 'package:unittest/unittest.dart';
-
-import 'test_helper.dart';
-
-var tests = [
-  (VM vm) async {
-    isInstanceOf<int> isInt = new isInstanceOf<int>();
-    // Just iterate over all the isolates to confirm they have
-    // the correct fields needed to examine zone memory usage.
-    for (Isolate isolate in vm.isolates) {
-      await isolate.reload();
-
-      expect(isolate.threads, isNotNull);
-      List<Thread> threads = isolate.threads;
-
-      for (Thread thread in threads) {
-        expect(thread.type, equals('_Thread'));
-        expect(thread.id, isNotNull);
-        expect(thread.kind, isNotNull);
-        expect(thread.zones, isNotNull);
-        List<Zone> zones = thread.zones;
-
-        for (Zone zone in zones) {
-          expect(zone.capacity, isInt);
-          expect(zone.used, isInt);
-        }
-      }
-    }
-  },
-];
-
-main(args) async => runVMTests(args, tests);