Remove gc greedy mode.

src/heap.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1279 matching lines @@
 
   inline void decrement_scan_on_scavenge_pages() {
     scan_on_scavenge_pages_--;
     if (FLAG_gc_verbose) {
       PrintF("Scan-on-scavenge pages: %d\n", scan_on_scavenge_pages_);
     }
   }
 
   PromotionQueue* promotion_queue() { return &promotion_queue_; }
 
-#ifdef DEBUG
-  // Utility used with flag gc-greedy.
-  void GarbageCollectionGreedyCheck();
-#endif
-
   void AddGCPrologueCallback(v8::Isolate::GCPrologueCallback callback,
                              GCType gc_type_filter,
                              bool pass_isolate = true);
   void RemoveGCPrologueCallback(v8::Isolate::GCPrologueCallback callback);
 
   void AddGCEpilogueCallback(v8::Isolate::GCEpilogueCallback callback,
                              GCType gc_type_filter,
                              bool pass_isolate = true);
   void RemoveGCEpilogueCallback(v8::Isolate::GCEpilogueCallback callback);
 
@@ skipping 1823 matching lines @@
   DisallowHeapAllocation no_allocation;  // i.e. no gc allowed.
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer);
 };
 #endif  // DEBUG
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_H_