[intrinsic] Drop the %_ValueOf intrinsic.

src/full-codegen/x87/full-codegen-x87.cc

Index: src/full-codegen/x87/full-codegen-x87.cc
diff --git a/src/full-codegen/x87/full-codegen-x87.cc b/src/full-codegen/x87/full-codegen-x87.cc
index 147ee24cb0b8359359723169947465850018e259..aa5b2bcba136fa1ef8c4ccf3b02fe1670d5984ae 100644
--- a/src/full-codegen/x87/full-codegen-x87.cc
+++ b/src/full-codegen/x87/full-codegen-x87.cc
@@ -2733,25 +2733,6 @@ void FullCodeGenerator::EmitClassOf(CallRuntime* expr) {
 }
 
 
-void FullCodeGenerator::EmitValueOf(CallRuntime* expr) {
-  ZoneList<Expression*>* args = expr->arguments();
-  DCHECK(args->length() == 1);
-
-  VisitForAccumulatorValue(args->at(0));  // Load the object.
-
-  Label done;
-  // If the object is a smi return the object.
-  __ JumpIfSmi(eax, &done, Label::kNear);
-  // If the object is not a value type, return the object.
-  __ CmpObjectType(eax, JS_VALUE_TYPE, ebx);
-  __ j(not_equal, &done, Label::kNear);
-  __ mov(eax, FieldOperand(eax, JSValue::kValueOffset));
-
-  __ bind(&done);
-  context()->Plug(eax);
-}
-
-
 void FullCodeGenerator::EmitStringCharFromCode(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   DCHECK(args->length() == 1);