[vala] codegen: Do not create a shadowing *_private_offset variable in GtkModule

[Rico Tzschichholz <ricotz src gnome org>]

commit 70e09f78cb347c6b188a1100ec39748e337d53c1
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon Jul 9 12:53:01 2018 +0200

    codegen: Do not create a shadowing *_private_offset variable in GtkModule
    
    This is globally available since df56f916e52e5efe3876afed59a6190f6cead1c8

 codegen/valagtkmodule.vala | 10 ----------
 1 file changed, 10 deletions(-)
---
diff --git a/codegen/valagtkmodule.vala b/codegen/valagtkmodule.vala
index bd54f9cd7..da0fe9905 100644
--- a/codegen/valagtkmodule.vala
+++ b/codegen/valagtkmodule.vala
@@ -230,16 +230,6 @@ public class Vala.GtkModule : GSignalModule {
                        return;
                }
 
-               // this check is necessary because calling get_instance_private_offset otherwise will result 
in an error
-               if (cl.has_private_fields) {
-                       var private_offset = "%s_private_offset".printf (get_ccode_name (cl));
-                       ccode.add_declaration ("gint", new CCodeVariableDeclarator (private_offset));
-
-                       var cgetprivcall = new CCodeFunctionCall (new CCodeIdentifier 
("g_type_class_get_instance_private_offset"));
-                       cgetprivcall.add_argument (new CCodeIdentifier ("klass"));
-                       ccode.add_assignment (new CCodeIdentifier (private_offset), cgetprivcall);
-               }
-
                /* Gtk builder widget template */
                var ui = cl.get_attribute_string ("GtkTemplate", "ui");
                if (ui == null) {