Removed Isolate::EnterDefaultIsolate.

src/isolate.cc

Index: src/isolate.cc
diff --git a/src/isolate.cc b/src/isolate.cc
index 91b8e8371fa3a4aedad5d61a2e8d0d65b83a2ea3..f53e9103fc8c6b78265ee6b302ee2bf7666e2303 100644
--- a/src/isolate.cc
+++ b/src/isolate.cc
@@ -213,18 +213,6 @@ struct StaticInitializer {
 } static_initializer;
 
 
-void Isolate::EnterDefaultIsolate() {
-  EnsureDefaultIsolate();
-  ASSERT(default_isolate_ != NULL);
-
-  PerIsolateThreadData* data = CurrentPerIsolateThreadData();
-  // If not yet in default isolate - enter it.
-  if (data == NULL || data->isolate() != default_isolate_) {
-    default_isolate_->Enter();
-  }
-}
-
-
 Address Isolate::get_address_from_id(Isolate::AddressId id) {
   return isolate_addresses_[id];
 }