[ Service ] Delete kill_paused_test and kill_running_test

These tests are flaky and don't add much useful test coverage to the
Observatory service test suite. Equivalent, non-flaky versions of these
tests are under the pkg/vm_service test suite.

Fixes https://github.com/dart-lang/sdk/issues/53373

TEST=Removing tests

Change-Id: Iadb5f296387bff687cb06fbdfb3379eba05b9afa
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/338981
Commit-Queue: Ben Konyi <bkonyi@google.com>
Auto-Submit: Ben Konyi <bkonyi@google.com>
Reviewed-by: Derek Xu <derekx@google.com>
diff --git a/runtime/observatory/tests/service/kill_paused_test.dart b/runtime/observatory/tests/service/kill_paused_test.dart
deleted file mode 100644
index ad42edc..0000000
--- a/runtime/observatory/tests/service/kill_paused_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2015, 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.
-
-import 'package:observatory/service_common.dart';
-import 'package:test/test.dart';
-
-import 'test_helper.dart';
-import 'dart:developer';
-import 'service_test_common.dart';
-
-testMain() async {
-  debugger(); // Stop here.
-  print('1');
-  while (true) {}
-}
-
-var tests = <IsolateTest>[
-  // Stopped at 'debugger' statement.
-  hasStoppedAtBreakpoint,
-  // Kill the app
-  (Isolate isolate) async {
-    Map<String, dynamic> params = <String, dynamic>{};
-    ServiceObject result = await isolate.invokeRpc('kill', params);
-    expect(result.type, equals('Success'));
-  }
-];
-
-main(args) async => runIsolateTests(args, tests, testeeConcurrent: testMain);
diff --git a/runtime/observatory/tests/service/kill_running_test.dart b/runtime/observatory/tests/service/kill_running_test.dart
deleted file mode 100644
index f85a0d5..0000000
--- a/runtime/observatory/tests/service/kill_running_test.dart
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2015, 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.
-
-import 'package:observatory/service_common.dart';
-import 'package:test/test.dart';
-
-import 'test_helper.dart';
-
-testMain() async {
-  print('1');
-  while (true) {}
-}
-
-var tests = <IsolateTest>[
-  // Kill the app
-  (Isolate isolate) async {
-    Map<String, dynamic> params = <String, dynamic>{};
-    ServiceObject result = await isolate.invokeRpc('kill', params);
-    expect(result.type, equals('Success'));
-  }
-];
-
-main(args) async => runIsolateTests(args, tests, testeeConcurrent: testMain);