Remove deprecated code

pkg/analysis_server/test/services/completion/optype_test.dart

Index: pkg/analysis_server/test/services/completion/optype_test.dart
diff --git a/pkg/analysis_server/test/services/completion/optype_test.dart b/pkg/analysis_server/test/services/completion/optype_test.dart
index 9f2ce434c19d8ee7c3957d0e5384c1c4db57a4ce..10ae92d9197a3cf8a24951811455488836c242c4 100644
--- a/pkg/analysis_server/test/services/completion/optype_test.dart
+++ b/pkg/analysis_server/test/services/completion/optype_test.dart
@@ -9,13 +9,12 @@ import 'package:analysis_server/src/services/completion/optype.dart';
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/source.dart';
+import 'package:plugin/manager.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 import 'package:unittest/unittest.dart';
 
 import '../../abstract_context.dart';
 import '../../utils.dart';
-import 'package:plugin/plugin.dart';
-import 'package:plugin/manager.dart';
 
 main() {
   initializeTestEnvironment();
@@ -26,16 +25,6 @@ main() {
 class OpTypeTest {
   OpType visitor;
 
-  void processRequiredPlugins() {
-    ExtensionManager manager = new ExtensionManager();
-    manager.processPlugins(AnalysisEngine.instance.requiredPlugins);
-  }
-
-  @override
-  void setUp() {
-    processRequiredPlugins();
-  }
-
   void addTestSource(String content, {bool resolved: false}) {
     int offset = content.indexOf('^');
     expect(offset, isNot(equals(-1)), reason: 'missing ^');
@@ -79,6 +68,15 @@ class OpTypeTest {
     expect(visitor.isPrefixed, prefixed, reason: 'prefixed');
   }
 
+  void processRequiredPlugins() {
+    ExtensionManager manager = new ExtensionManager();
+    manager.processPlugins(AnalysisEngine.instance.requiredPlugins);
+  }
+
+  void setUp() {
+    processRequiredPlugins();
+  }
+
   test_Annotation() {
     // SimpleIdentifier  Annotation  MethodDeclaration  ClassDeclaration
     addTestSource('class C { @A^ }');