Revert "Break deserializer reservations into chunks that fit onto a page."

src/heap/heap.h

Index: src/heap/heap.h
diff --git a/src/heap/heap.h b/src/heap/heap.h
index 842a2c13b2714965508f84a2908826fd3824a46e..7186bb6dac9e540e75d7c27fda50ccbf6fab9946 100644
--- a/src/heap/heap.h
+++ b/src/heap/heap.h
@@ -1009,16 +1009,7 @@ class Heap {
 
   // Support for partial snapshots.  After calling this we have a linear
   // space to write objects in each space.
-  struct Chunk {
-    uint32_t size;
-    Address start;
-    Address end;
-  };
-
-  typedef List<Chunk> Reservation;
-
-  // Returns false if not able to reserve.
-  bool ReserveSpace(Reservation* reservations);
+  void ReserveSpace(int* sizes, Address* addresses);
 
   //
   // Support for the API.