Rip out most of our outdated modules implementation.

src/full-codegen/full-codegen.h

Index: src/full-codegen/full-codegen.h
diff --git a/src/full-codegen/full-codegen.h b/src/full-codegen/full-codegen.h
index 87367ca055fe11ff717b84eae5ece4bdb4678884..30e0373ea50c3b174795ce5122431af933cc4c4b 100644
--- a/src/full-codegen/full-codegen.h
+++ b/src/full-codegen/full-codegen.h
@@ -387,7 +387,6 @@ class FullCodeGenerator: public AstVisitor {
   void VisitInDuplicateContext(Expression* expr);
 
   void VisitDeclarations(ZoneList<Declaration*>* declarations) override;
-  void DeclareModules(Handle<FixedArray> descriptions);
   void DeclareGlobals(Handle<FixedArray> pairs);
   int DeclareGlobalsFlags();
 
@@ -971,8 +970,6 @@ class FullCodeGenerator: public AstVisitor {
   int try_catch_depth_;
   int operand_stack_depth_;
   ZoneList<Handle<Object> >* globals_;
-  Handle<FixedArray> modules_;
-  int module_index_;
   const ExpressionContext* context_;
   ZoneList<BailoutEntry> bailout_entries_;
   ZoneList<BackEdgeEntry> back_edges_;