Remove obsolete Oddball setters in FixedArray.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index b165ad46382603f918f6f42d5fa55e960abcbba7..f629d9f19f52b122f9f71c838c787ab91314df5f 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -2092,28 +2092,21 @@ void FixedArray::NoWriteBarrierSet(FixedArray* array,
 
 
 void FixedArray::set_undefined(int index) {
-  ASSERT(map() != HEAP->fixed_cow_array_map());
-  set_undefined(GetHeap(), index);
-}
-
-
-void FixedArray::set_undefined(Heap* heap, int index) {
+  ASSERT(map() != GetHeap()->fixed_cow_array_map());
   ASSERT(index >= 0 && index < this->length());
-  ASSERT(!heap->InNewSpace(heap->undefined_value()));
-  WRITE_FIELD(this, kHeaderSize + index * kPointerSize,
-              heap->undefined_value());
+  ASSERT(!GetHeap()->InNewSpace(GetHeap()->undefined_value()));
+  WRITE_FIELD(this,
+              kHeaderSize + index * kPointerSize,
+              GetHeap()->undefined_value());
 }
 
 
 void FixedArray::set_null(int index) {
-  set_null(GetHeap(), index);
-}
-
-
-void FixedArray::set_null(Heap* heap, int index) {
   ASSERT(index >= 0 && index < this->length());
-  ASSERT(!heap->InNewSpace(heap->null_value()));
-  WRITE_FIELD(this, kHeaderSize + index * kPointerSize, heap->null_value());
+  ASSERT(!GetHeap()->InNewSpace(GetHeap()->null_value()));
+  WRITE_FIELD(this,
+              kHeaderSize + index * kPointerSize,
+              GetHeap()->null_value());
 }