Remove separate construct stub for new.target users.

src/frames.h

Index: src/frames.h
diff --git a/src/frames.h b/src/frames.h
index 910dc18cfbf70c5942483b02eadb4001c768d0aa..0d2a2e3aa832d055d0ac269a58ed5d7641a792fd 100644
--- a/src/frames.h
+++ b/src/frames.h
@@ -155,7 +155,7 @@ class ConstructFrameConstants : public AllStatic {
  public:
   // FP-relative.
   static const int kImplicitReceiverOffset =
-      StandardFrameConstants::kExpressionsOffset - 2 * kPointerSize;
+      StandardFrameConstants::kExpressionsOffset - 3 * kPointerSize;
   static const int kOriginalConstructorOffset =
       StandardFrameConstants::kExpressionsOffset - 2 * kPointerSize;
   static const int kLengthOffset =
@@ -164,7 +164,7 @@ class ConstructFrameConstants : public AllStatic {
       StandardFrameConstants::kExpressionsOffset - 0 * kPointerSize;
 
   static const int kFrameSize =
-      StandardFrameConstants::kFixedFrameSize + 3 * kPointerSize;
+      StandardFrameConstants::kFixedFrameSize + 4 * kPointerSize;
 };