Revert of [heap] Unregister shrinked large object memory from chunk map.

src/hashmap.h

Index: src/hashmap.h
diff --git a/src/hashmap.h b/src/hashmap.h
index 41e189d67ace43fa7fd7426bec919e8af7ce34b6..f94def7c3c7a04cb4c0e534074c4f94b092a0f81 100644
--- a/src/hashmap.h
+++ b/src/hashmap.h
@@ -50,9 +50,6 @@
   // corresponding key, key hash, and NULL value.
   Entry* LookupOrInsert(void* key, uint32_t hash,
                         AllocationPolicy allocator = AllocationPolicy());
-
-  Entry* InsertNew(void* key, uint32_t hash,
-                   AllocationPolicy allocator = AllocationPolicy());
 
   // Removes the entry with matching key.
   // It returns the value of the deleted entry
@@ -131,17 +128,6 @@
   if (p->key != NULL) {
     return p;
   }
-
-  return InsertNew(key, hash, allocator);
-}
-
-template <class AllocationPolicy>
-typename TemplateHashMapImpl<AllocationPolicy>::Entry*
-TemplateHashMapImpl<AllocationPolicy>::InsertNew(void* key, uint32_t hash,
-                                                 AllocationPolicy allocator) {
-  // Find a matching entry.
-  Entry* p = Probe(key, hash);
-  DCHECK(p->key == NULL);
 
   // No entry found; insert one.
   p->key = key;