Remove obsolete aggregating and non-working producers heap profilers.

src/profile-generator.h

Index: src/profile-generator.h
diff --git a/src/profile-generator.h b/src/profile-generator.h
index 9b710db175cc56b4d0377c7f515264f005fb2398..6343d057c9628591ac3d0b4163ba6a730ef75cc3 100644
--- a/src/profile-generator.h
+++ b/src/profile-generator.h
@@ -638,8 +638,7 @@ class HeapSnapshotsCollection;
 class HeapSnapshot {
  public:
   enum Type {
-    kFull = v8::HeapSnapshot::kFull,
-    kAggregated = v8::HeapSnapshot::kAggregated
+    kFull = v8::HeapSnapshot::kFull
   };
 
   HeapSnapshot(HeapSnapshotsCollection* collection,