Remove JSBuiltinsObject.

src/objects-printer.cc

Index: src/objects-printer.cc
diff --git a/src/objects-printer.cc b/src/objects-printer.cc
index f2fee648f9b662759874797d905fea20c885f75a..33f70c9f0ea2dc62862a0056d64c94eb4d0e1fd7 100644
--- a/src/objects-printer.cc
+++ b/src/objects-printer.cc
@@ -113,9 +113,6 @@ void HeapObject::HeapObjectPrint(std::ostream& os) {  // NOLINT
     case JS_GLOBAL_OBJECT_TYPE:
       JSGlobalObject::cast(this)->JSGlobalObjectPrint(os);
       break;
-    case JS_BUILTINS_OBJECT_TYPE:
-      JSBuiltinsObject::cast(this)->JSBuiltinsObjectPrint(os);
-      break;
     case JS_VALUE_TYPE:
       os << "Value wrapper around:";
       JSValue::cast(this)->value()->Print(os);
@@ -924,12 +921,6 @@ void JSGlobalObject::JSGlobalObjectPrint(std::ostream& os) {  // NOLINT
 }
 
 
-void JSBuiltinsObject::JSBuiltinsObjectPrint(std::ostream& os) {  // NOLINT
-  os << "builtins ";
-  JSObjectPrint(os);
-}
-
-
 void Cell::CellPrint(std::ostream& os) {  // NOLINT
   HeapObject::PrintHeader(os, "Cell");
 }