Remove unused InternalAnalysisContext.addSourceInfo().

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

Index: pkg/analyzer/lib/src/context/context.dart
diff --git a/pkg/analyzer/lib/src/context/context.dart b/pkg/analyzer/lib/src/context/context.dart
index 61039bb0e4b32cf16e2b0ce7ff2b234feeb45091..91cd94ff8ffd0a10b745cd735c3aa3e7ae6be3ad 100644
--- a/pkg/analyzer/lib/src/context/context.dart
+++ b/pkg/analyzer/lib/src/context/context.dart
@@ -441,13 +441,6 @@ class AnalysisContextImpl implements InternalAnalysisContext {
   }
 
   @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) {