Remove unused code.

pkg/analysis_server/test/computer/error_test.dart

 // Copyright (c) 2014, 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.
 
 library test.computer.error;
 
-import 'package:analysis_server/src/computer/error.dart';
+import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/protocol.dart';
-import 'package:analysis_server/src/constants.dart';
-import '../mocks.dart';
-import '../reflective_tests.dart';
 import 'package:analyzer/src/generated/error.dart' as engine;
 import 'package:analyzer/src/generated/source.dart';
 import 'package:typed_mock/typed_mock.dart';
 import 'package:unittest/unittest.dart';
 
+import '../mocks.dart';
+import '../reflective_tests.dart';
+
 
 
 main() {
   groupSep = ' | ';
   runReflectiveTests(AnalysisErrorTest);
 }
 
 
 class AnalysisErrorMock extends TypedMock implements engine.AnalysisError {
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
@@ skipping 69 matching lines @@
       LOCATION: {
         FILE: 'foo.dart',
         OFFSET: 10,
         LENGTH: 20,
         START_LINE: -1,
         START_COLUMN: -1
       },
       MESSAGE: 'my message'
     });
   }
-
-  void test_engineErrorsToJson() {
-    var json = engineErrorsToJson(lineInfo, [engineError]);
-    expect(json, unorderedEquals([{
-        'severity': 'ERROR',
-        'type': 'COMPILE_TIME_ERROR',
-        'location': {
-          'file': 'foo.dart',
-          'offset': 10,
-          'length': 20,
-          'startLine': 3,
-          'startColumn': 2
-        },
-        'message': 'my message'
-      }]));
-  }
 }