Tweaks for refactoring tests.

pkg/analysis_server/test/services/refactoring/abstract_rename.dart

Index: pkg/analysis_server/test/services/refactoring/abstract_rename.dart
diff --git a/pkg/analysis_server/test/services/refactoring/abstract_rename.dart b/pkg/analysis_server/test/services/refactoring/abstract_rename.dart
index e3e2cbba1f67f0282480a4579d0a7b1d60afedec..66454c0cba189a274be73918403c736b48541c63 100644
--- a/pkg/analysis_server/test/services/refactoring/abstract_rename.dart
+++ b/pkg/analysis_server/test/services/refactoring/abstract_rename.dart
@@ -4,8 +4,6 @@
 
 library test.services.refactoring.rename;
 
-import 'dart:async';
-
 import 'package:analysis_server/src/protocol.dart' hide Element;
 import 'package:analysis_server/src/services/correction/namespace.dart';
 import 'package:analysis_server/src/services/refactoring/refactoring.dart';
@@ -70,19 +68,6 @@ class RenameRefactoringTest extends RefactoringTest {
   }
 
   /**
-   * Checks that all conditions are OK and the result of applying the [Change]
-   * to [testUnit] is [expectedCode].
-   */
-  Future assertSuccessfulRename(String expectedCode) {
-    return assertRefactoringConditionsOK().then((_) {
-      return refactoring.createChange().then((SourceChange refactoringChange) {
-        this.refactoringChange = refactoringChange;
-        assertTestChangeResult(expectedCode);
-      });
-    });
-  }
-
-  /**
    * Creates a new [RenameRefactoring] in [refactoring] for the [Element] of
    * the [SimpleIdentifier] at the given [search] pattern.
    */