removed some unnecessary stuff from d8's initialization

src/d8-posix.cc

Index: src/d8-posix.cc
diff --git a/src/d8-posix.cc b/src/d8-posix.cc
index a7a4049361cb1e0e6945136908d97da0a4bd9fa5..fc1e76cfa3dc0d008b852d3eecfa1988f3947563 100644
--- a/src/d8-posix.cc
+++ b/src/d8-posix.cc
@@ -353,7 +353,7 @@ static Handle<Value> GetStdout(int child_fd,
       cons_args[0] = accumulator;
       cons_args[1] = addition;

[Søren Thygesen Gjesse, 2011/06/21 07:31:06]

We have the function String::Concat in the API now, so I think we can get rid of
the cons_function all together.

       accumulator = Handle<String>::Cast(cons_function->Call(
-          Shell::utility_context()->Global(),
+          Shell::evaluation_context()->Global(),

[Yang, 2011/06/21 02:25:55]

Since we don't always have an utility context now (unless in interactive shell),
we use the OS object in the evaluation context.

           2,
           cons_args));
       fullness = bytes_read + fullness - length;