Delete deprecated CPU profiler code that supports filtering by security token

src/heap-snapshot-generator.cc

Index: src/heap-snapshot-generator.cc
diff --git a/src/heap-snapshot-generator.cc b/src/heap-snapshot-generator.cc
index f959aee00e1eabf8f3fb109ea29923a24483d814..186161b5cce554abfdc4ac4a54f72d466a5dc951 100644
--- a/src/heap-snapshot-generator.cc
+++ b/src/heap-snapshot-generator.cc
@@ -572,7 +572,6 @@ size_t HeapObjectsMap::GetUsedMemorySize() const {
 
 HeapSnapshotsCollection::HeapSnapshotsCollection(Heap* heap)
     : is_tracking_objects_(false),
-      token_enumerator_(new TokenEnumerator()),
       ids_(heap) {
 }
 
@@ -583,7 +582,6 @@ static void DeleteHeapSnapshot(HeapSnapshot** snapshot_ptr) {
 
 
 HeapSnapshotsCollection::~HeapSnapshotsCollection() {
-  delete token_enumerator_;
   snapshots_.Iterate(DeleteHeapSnapshot);
 }