Refactor transitioning stores.

src/lithium.cc

Index: src/lithium.cc
diff --git a/src/lithium.cc b/src/lithium.cc
index c6d64135c32d8d513753d2980ecbce1fccb83cb1..74da8a3074c8a784eae5c9b80ed54bd5bce7a451 100644
--- a/src/lithium.cc
+++ b/src/lithium.cc
@@ -238,7 +238,6 @@ LChunk::LChunk(CompilationInfo* info, HGraph* graph)
       instructions_(32, graph->zone()),
       pointer_maps_(8, graph->zone()),
       inlined_closures_(1, graph->zone()),
-      deprecation_dependencies_(MapLess(), MapAllocator(graph->zone())),
       stability_dependencies_(MapLess(), MapAllocator(graph->zone())) {
 }
 
@@ -379,14 +378,6 @@ Representation LChunk::LookupLiteralRepresentation(
 
 
 void LChunk::CommitDependencies(Handle<Code> code) const {
-  for (MapSet::const_iterator it = deprecation_dependencies_.begin(),
-       iend = deprecation_dependencies_.end(); it != iend; ++it) {
-    Handle<Map> map = *it;
-    ASSERT(!map->is_deprecated());
-    ASSERT(map->CanBeDeprecated());
-    Map::AddDependentCode(map, DependentCode::kTransitionGroup, code);
-  }
-
   for (MapSet::const_iterator it = stability_dependencies_.begin(),
        iend = stability_dependencies_.end(); it != iend; ++it) {
     Handle<Map> map = *it;