Revert of [runtime] Replace global object link with native context link in all contexts.

src/interpreter/bytecode-generator.cc

Index: src/interpreter/bytecode-generator.cc
diff --git a/src/interpreter/bytecode-generator.cc b/src/interpreter/bytecode-generator.cc
index c8b0eedbe204c9b748736512ed825cd3a7852103..1d6532c8eb5127ba1126bee3fb4e4673bf532b62 100644
--- a/src/interpreter/bytecode-generator.cc
+++ b/src/interpreter/bytecode-generator.cc
@@ -1783,13 +1783,10 @@
       case VariableLocation::GLOBAL:
       case VariableLocation::UNALLOCATED: {
         // Global var, let, const or variables not explicitly declared.
-        Register native_context = execution_result()->NewRegister();
         Register global_object = execution_result()->NewRegister();
         builder()
             ->LoadContextSlot(execution_context()->reg(),
-                              Context::NATIVE_CONTEXT_INDEX)
-            .StoreAccumulatorInRegister(native_context)
-            .LoadContextSlot(native_context, Context::EXTENSION_INDEX)
+                              Context::GLOBAL_OBJECT_INDEX)
             .StoreAccumulatorInRegister(global_object)
             .LoadLiteral(variable->name())
             .Delete(global_object, language_mode());