[builtins] Remove the unused AllocationSite slot from ConstructFrame.

src/frames.h

Index: src/frames.h
diff --git a/src/frames.h b/src/frames.h
index 7588769a043d9861fa5d3cb80badc6d0bee38c29..b3b5f62abff4895c6e92404c98b2f5cfe91ff256 100644
--- a/src/frames.h
+++ b/src/frames.h
@@ -308,10 +308,9 @@ class ConstructFrameConstants : public TypedFrameConstants {
  public:
   // FP-relative.
   static const int kContextOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(0);
-  static const int kAllocationSiteOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(1);
-  static const int kLengthOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(2);
-  static const int kImplicitReceiverOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(3);
-  DEFINE_TYPED_FRAME_SIZES(4);
+  static const int kLengthOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(1);
+  static const int kImplicitReceiverOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(2);
+  DEFINE_TYPED_FRAME_SIZES(3);
 };
 
 class StubFailureTrampolineFrameConstants : public InternalFrameConstants {