Remove Script::SetData and the script_data parameter from Script::(Compile|New).

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 0b131de1485795bcebbbca3a8f06d212f5400388..d9d105c4874c33e5dadc836228822e26486c5838 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -700,7 +700,6 @@ Handle<Script> Factory::NewScript(Handle<String> source) {
   script->set_id(Smi::FromInt(id));
   script->set_line_offset(Smi::FromInt(0));
   script->set_column_offset(Smi::FromInt(0));
-  script->set_data(heap->undefined_value());
   script->set_context_data(heap->undefined_value());
   script->set_type(Smi::FromInt(Script::TYPE_NORMAL));
   script->set_wrapper(*wrapper);