[builtins] Sanitize the machinery around Construct calls.

src/crankshaft/arm64/lithium-arm64.h

Index: src/crankshaft/arm64/lithium-arm64.h
diff --git a/src/crankshaft/arm64/lithium-arm64.h b/src/crankshaft/arm64/lithium-arm64.h
index cf9519f05a1488cef4a9d456c5b19fbf2ff0c1f7..097b32c2c8471c7f132a5462383edf1c717bada9 100644
--- a/src/crankshaft/arm64/lithium-arm64.h
+++ b/src/crankshaft/arm64/lithium-arm64.h
@@ -35,7 +35,6 @@ class LCodeGen;
   V(Branch)                                  \
   V(CallFunction)                            \
   V(CallJSFunction)                          \
-  V(CallNew)                                 \
   V(CallNewArray)                            \
   V(CallRuntime)                             \
   V(CallStub)                                \
@@ -851,25 +850,6 @@ class LCallFunction final : public LTemplateInstruction<1, 2, 2> {
 };
 
 
-class LCallNew final : public LTemplateInstruction<1, 2, 0> {
- public:
-  LCallNew(LOperand* context, LOperand* constructor) {
-    inputs_[0] = context;
-    inputs_[1] = constructor;
-  }
-
-  LOperand* context() { return inputs_[0]; }
-  LOperand* constructor() { return inputs_[1]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(CallNew, "call-new")
-  DECLARE_HYDROGEN_ACCESSOR(CallNew)
-
-  void PrintDataTo(StringStream* stream) override;
-
-  int arity() const { return hydrogen()->argument_count() - 1; }
-};
-
-
 class LCallNewArray final : public LTemplateInstruction<1, 2, 0> {
  public:
   LCallNewArray(LOperand* context, LOperand* constructor) {