Remove a few unnecssary scopers from unit tests.

test/unittests/api/v8-object-unittest.cc

Index: test/unittests/api/v8-object-unittest.cc
diff --git a/test/unittests/api/v8-object-unittest.cc b/test/unittests/api/v8-object-unittest.cc
index 5d6ca804ad0303e994194e83d2cd90ef18a2b4bc..2e7ab350ea38c5283a8574275457642284201f6e 100644
--- a/test/unittests/api/v8-object-unittest.cc
+++ b/test/unittests/api/v8-object-unittest.cc
@@ -15,8 +15,6 @@ void accessor_name_getter_callback(Local<Name>,
                                    const PropertyCallbackInfo<Value>&) {}
 
 TEST_F(ObjectTest, SetAccessorWhenUnconfigurablePropAlreadyDefined) {
-  Context::Scope context_scope(context());
-
   TryCatch try_catch(isolate());
 
   Local<Object> global = context()->Global();