Revert "[flutter_tools] write test to convince self of lack of timing issue (#58011)" (#58123)

This reverts commit f77c669d.

packages/flutter_tools/test/general.shard/resident_runner_test.dart

@@ -1198,48 +1198,6 @@ void main() {
     }) async => mockVMService,
   }));
 
-  group('Timing test', () {
-    Completer<MockVMService> completer;
-
-    test('Can connect to observatory stream after receiving done event.', () => testbed.run(() async {
-      completer = Completer<MockVMService>();
-      fakeVmServiceHost = FakeVmServiceHost(requests: <VmServiceExpectation>[]);
-      final MockDevice mockDevice = MockDevice();
-      final MockDeviceLogReader mockLogReader = MockDeviceLogReader();
-      when(mockDevice.getLogReader(app: anyNamed('app'))).thenReturn(mockLogReader);
-      final StreamController<Uri> controller = StreamController<Uri>();
-
-      final TestFlutterDevice flutterDevice = TestFlutterDevice(
-        mockDevice,
-        observatoryUris: controller.stream,
-      );
-
-      final Future<void> connectResult = flutterDevice.connect();
-
-      // First add the observatory URI to connect to.
-      controller.add(testUri);
-
-      // Then close the stream.
-      await controller.close();
-
-      // Then complete the VM service connection.
-      completer.complete(mockVMService);
-
-      await connectResult;
-
-      verify(mockLogReader.connectedVMService = mockVMService);
-    }, overrides: <Type, Generator>{
-      VMServiceConnector: () => (Uri httpUri, {
-        ReloadSources reloadSources,
-        Restart restart,
-        CompileExpression compileExpression,
-        ReloadMethod reloadMethod,
-        io.CompressionOptions compression,
-        Device device,
-      }) async => completer.future,
-    }));
-  });
-
   test('nextPlatform moves through expected platforms', () {
     expect(nextPlatform('android', TestFeatureFlags()), 'iOS');
     expect(nextPlatform('iOS', TestFeatureFlags()), 'fuchsia');