Remove uses of configuration data

pkg/analyzer/test/src/context/context_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 analyzer.test.src.context.context_test;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analyzer/dart/ast/ast.dart';
@@ skipping 959 matching lines @@
         .then((_) {
           expect(completed, isFalse);
           _performPendingAnalysisTasks();
         })
         .then((_) => pumpEventQueue())
         .then((_) {
           expect(completed, isTrue);
         });
   }
 
-  void test_configurationData() {
-    var key = new ResultDescriptor('test_key', 'TEST_DEFAULT');
-    var testData = ['test', 'data'];
-    context.setConfigurationData(key, testData);
-    expect(context.getConfigurationData(key), testData);
-    var unusedKey = new ResultDescriptor('unused_key', 'UNUSED_DEFAULT');
-    expect(context.getConfigurationData(unusedKey), 'UNUSED_DEFAULT');
-  }
-
   void test_dispose() {
     expect(context.isDisposed, isFalse);
     context.dispose();
     expect(context.isDisposed, isTrue);
   }
 
   void test_ensureResolvedDartUnits_definingUnit_hasResolved() {
     Source source = addSource('/test.dart', '');
     LibrarySpecificUnit libTarget = new LibrarySpecificUnit(source, source);
     analysisDriver.computeResult(libTarget, RESOLVED_UNIT);
@@ skipping 4446 matching lines @@
    * Initialize the visitor.
    */
   _ElementGatherer();
 
   @override
   void visitElement(Element element) {
     elements[element] = element;
     super.visitElement(element);
   }
 }