[cleanup] Remove dead code from Variable and simplify PatternRewriter slightly

src/ast/variables.cc

Index: src/ast/variables.cc
diff --git a/src/ast/variables.cc b/src/ast/variables.cc
index cc269cd0c7f850d76cf9861b1dd55d64406051bb..13ce9865427758a3c5416c79bdc16e3d49b6d34f 100644
--- a/src/ast/variables.cc
+++ b/src/ast/variables.cc
@@ -40,14 +40,5 @@ bool Variable::IsGlobalObjectProperty() const {
          scope_ != NULL && scope_->is_script_scope();
 }
 
-
-bool Variable::IsStaticGlobalObjectProperty() const {
-  // Temporaries are never global, they must always be allocated in the
-  // activation frame.
-  return (IsDeclaredVariableMode(mode()) && !IsLexicalVariableMode(mode())) &&
-         scope_ != NULL && scope_->is_script_scope();
-}
-
-
 }  // namespace internal
 }  // namespace v8