Rip out most of our outdated modules implementation.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index fea3019945f3b2f3d096b4621b63c502c0c97cfd..d84de3a82c7814be56b4289fd177c21350b2ef87 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -790,7 +790,6 @@ TYPE_CHECKER(JSDate, JS_DATE_TYPE)
 TYPE_CHECKER(JSError, JS_ERROR_TYPE)
 TYPE_CHECKER(JSGeneratorObject, JS_GENERATOR_OBJECT_TYPE)
 TYPE_CHECKER(JSMessageObject, JS_MESSAGE_OBJECT_TYPE)
-TYPE_CHECKER(JSModule, JS_MODULE_TYPE)
 TYPE_CHECKER(JSPromise, JS_PROMISE_TYPE)
 TYPE_CHECKER(JSValue, JS_VALUE_TYPE)
 
@@ -2027,8 +2026,6 @@ int JSObject::GetHeaderSize(InstanceType type) {
       return JSObject::kHeaderSize;
     case JS_GENERATOR_OBJECT_TYPE:
       return JSGeneratorObject::kSize;
-    case JS_MODULE_TYPE:
-      return JSModule::kSize;
     case JS_GLOBAL_PROXY_TYPE:
       return JSGlobalProxy::kSize;
     case JS_GLOBAL_OBJECT_TYPE:
@@ -3178,7 +3175,6 @@ CAST_ACCESSOR(JSGlobalProxy)
 CAST_ACCESSOR(JSMap)
 CAST_ACCESSOR(JSMapIterator)
 CAST_ACCESSOR(JSMessageObject)
-CAST_ACCESSOR(JSModule)
 CAST_ACCESSOR(JSObject)
 CAST_ACCESSOR(JSProxy)
 CAST_ACCESSOR(JSReceiver)
@@ -6392,10 +6388,6 @@ bool JSGeneratorObject::is_executing() const {
   return continuation() == kGeneratorExecuting;
 }
 
-ACCESSORS(JSModule, context, Object, kContextOffset)
-ACCESSORS(JSModule, scope_info, ScopeInfo, kScopeInfoOffset)
-
-
 ACCESSORS(JSValue, value, Object, kValueOffset)