Rip out most of our outdated modules implementation.

src/ast/ast-numbering.cc

Index: src/ast/ast-numbering.cc
diff --git a/src/ast/ast-numbering.cc b/src/ast/ast-numbering.cc
index dd6ce4a6027214f59a0c83a49f74535c66060b8b..34ce96c13571729fe601e93173383d366b5d19de 100644
--- a/src/ast/ast-numbering.cc
+++ b/src/ast/ast-numbering.cc
@@ -92,13 +92,6 @@ void AstNumberingVisitor::VisitVariableDeclaration(VariableDeclaration* node) {
 }
 
 
-void AstNumberingVisitor::VisitExportDeclaration(ExportDeclaration* node) {
-  IncrementNodeCount();
-  DisableOptimization(kExportDeclaration);
-  VisitVariableProxy(node->proxy());
-}
-
-
 void AstNumberingVisitor::VisitEmptyStatement(EmptyStatement* node) {
   IncrementNodeCount();
 }