Remove unused InternalAnalysisContext.addSourceInfo().

pkg/analyzer/lib/src/context/context.dart

 // Copyright (c) 2015, 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.src.context.context;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analyzer/src/cancelable_future.dart';
@@ skipping 423 matching lines @@
   }
 
   @override
   void addListener(AnalysisListener listener) {
     if (!_listeners.contains(listener)) {
       _listeners.add(listener);
     }
   }
 
   @override
-  void addSourceInfo(Source source, SourceEntry info) {
-    // TODO(brianwilkerson) This method needs to be replaced by something that
-    // will copy CacheEntry's.
-//    _cache.put(source, info);
-  }
-
-  @override
   void applyAnalysisDelta(AnalysisDelta delta) {
     ChangeSet changeSet = new ChangeSet();
     delta.analysisLevels.forEach((Source source, AnalysisLevel level) {
       if (level == AnalysisLevel.NONE) {
         changeSet.removedSource(source);
       } else {
         changeSet.addedSource(source);
       }
     });
     applyChanges(changeSet);
@@ skipping 1684 matching lines @@
     PendingFuture pendingFuture =
         new PendingFuture<T>(_context, target, computeValue);
     if (!pendingFuture.evaluate(entry)) {
       _context._pendingFutureTargets
           .putIfAbsent(target, () => <PendingFuture>[])
           .add(pendingFuture);
     }
     return pendingFuture.future;
   }
 }