Remove the test for getNavigation() and removing the analysis context.

The test times out, because we don't get any answer on our getNavigation().
Technically this happens because we dispose the corresponding instance
of AnalysisDriver, so it is removed from the AnalysisDriverScheduler,
and getResult() never completes.

Which, I think makes sense.
Once the analysis root is removed, the client cannot expect answers.
So, there is no need for the test.

[email protected]

Change-Id: I124ac3d6a4a903880c7b8f82cafe692b38c59017
Reviewed-on: https://dart-review.googlesource.com/57903
Reviewed-by: Brian Wilkerson <[email protected]>
Commit-Queue: Konstantin Shcheglov <[email protected]>

Author: scheglov

pkg/analysis_server/test/analysis/get_navigation_test.dart

@@ -5,7 +5,6 @@
 import 'package:analysis_server/protocol/protocol.dart';
 import 'package:analysis_server/protocol/protocol_generated.dart';
 import 'package:analysis_server/src/domain_analysis.dart';
-import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer_plugin/protocol/protocol_common.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
@@ -185,28 +184,6 @@ main() {
     }
   }
 
-  test_removeContextAfterRequest() async {
-    addTestFile('''
-main() {
-  var test = 0;
-  print(test);
-}
-''');
-    // handle the request synchronously
-    Request request =
-        _createGetNavigationRequest(testFile, testCode.indexOf('test);'), 0);
-    server.handleRequest(request);
-    // remove context, causes sending an "invalid file" error
-    {
-      Folder projectFolder = getFolder(projectPath);
-      server.contextManager.callbacks.removeContext(projectFolder, <String>[]);
-    }
-    // wait for an error response
-    Response response = await serverChannel.waitForResponse(request);
-    expect(response.error, isNotNull);
-    expect(response.error.code, RequestErrorCode.GET_NAVIGATION_INVALID_FILE);
-  }
-
   test_zeroLength_end() async {
     addTestFile('''
 main() {