[Isolates] A fix for 2 crashing tests in arm simulator (post-API patch).

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index bf5a47b692969bb3ba793a3bcd80f36f3c5027d7..ff41a9a1efeb2a6692034049b034c8627acc41ef 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -168,9 +168,6 @@ Isolate* Isolate::default_isolate_ = NULL;
 Thread::LocalStorageKey Isolate::isolate_key_;
 Thread::LocalStorageKey Isolate::thread_id_key_;
 Thread::LocalStorageKey Isolate::per_isolate_thread_data_key_;
-#if defined(V8_TARGET_ARCH_ARM) && !defined(__arm__)
-Thread::LocalStorageKey Isolate::simulator_key_;
-#endif
 Mutex* Isolate::process_wide_mutex_ = NULL;
 Isolate::ThreadDataTable* Isolate::thread_data_table_ = NULL;
 Isolate::ThreadId Isolate::highest_thread_id_ = 0;
@@ -247,9 +244,6 @@ void Isolate::EnsureDefaultIsolate() {
     isolate_key_ = Thread::CreateThreadLocalKey();
     thread_id_key_ = Thread::CreateThreadLocalKey();
     per_isolate_thread_data_key_ = Thread::CreateThreadLocalKey();
-#if defined(V8_TARGET_ARCH_ARM) && !defined(__arm__)
-    simulator_key_ = Thread::CreateThreadLocalKey();
-#endif
     thread_data_table_ = new Isolate::ThreadDataTable();
     default_isolate_ = new Isolate();
   }