Remove unused code.

pkg/analysis_server/test/computer/error_test.dart

Index: pkg/analysis_server/test/computer/error_test.dart
diff --git a/pkg/analysis_server/test/computer/error_test.dart b/pkg/analysis_server/test/computer/error_test.dart
index 8bdc6b6db335d0e90aac8b93be3199fd6f29cc02..e83f9b28b1216acb7fde989461a82d6292428499 100644
--- a/pkg/analysis_server/test/computer/error_test.dart
+++ b/pkg/analysis_server/test/computer/error_test.dart
@@ -4,16 +4,16 @@
 
 library test.computer.error;
 
-import 'package:analysis_server/src/computer/error.dart';
-import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_server/src/constants.dart';
-import '../mocks.dart';
-import '../reflective_tests.dart';
+import 'package:analysis_server/src/protocol.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() {
@@ -103,20 +103,4 @@ class AnalysisErrorTest {
       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'
-      }]));
-  }
 }