[stubs] Drop CallApiCallbackStub::call_data_undefined optimization.

src/ic/ia32/handler-compiler-ia32.cc

Index: src/ic/ia32/handler-compiler-ia32.cc
diff --git a/src/ic/ia32/handler-compiler-ia32.cc b/src/ic/ia32/handler-compiler-ia32.cc
index 324dc10d03c07e1951845d149a6076016f4a1e9b..2cfa49b15b7888f58b8a2b7b8aa11638180bf885 100644
--- a/src/ic/ia32/handler-compiler-ia32.cc
+++ b/src/ic/ia32/handler-compiler-ia32.cc
@@ -161,10 +161,8 @@ void PropertyHandlerCompiler::GenerateApiAccessorCall(
 
   Isolate* isolate = masm->isolate();
   Handle<CallHandlerInfo> api_call_info = optimization.api_call_info();
-  bool call_data_undefined = false;
   // Put call data in place.
   if (api_call_info->data()->IsUndefined(isolate)) {
-    call_data_undefined = true;
     __ mov(data, Immediate(isolate->factory()->undefined_value()));
   } else {
     if (optimization.is_constant_call()) {
@@ -182,8 +180,7 @@ void PropertyHandlerCompiler::GenerateApiAccessorCall(
   __ mov(api_function_address, Immediate(function_address));
 
   // Jump to stub.
-  CallApiCallbackStub stub(isolate, is_store, call_data_undefined,
-                           !optimization.is_constant_call());
+  CallApiCallbackStub stub(isolate, is_store, !optimization.is_constant_call());
   __ TailCallStub(&stub);
 }