[gnome-builder] config: remove unused variables

[Christian Hergert <chergert src gnome org>]

commit 2900c83a9796d4a643531c4ace025ae10859f0d1
Author: Christian Hergert <chergert redhat com>
Date:   Tue Nov 14 21:07:19 2017 -0800

    config: remove unused variables

 src/libide/buildsystem/ide-configuration-manager.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/src/libide/buildsystem/ide-configuration-manager.c 
b/src/libide/buildsystem/ide-configuration-manager.c
index f0a09cd..f95c90c 100644
--- a/src/libide/buildsystem/ide-configuration-manager.c
+++ b/src/libide/buildsystem/ide-configuration-manager.c
@@ -512,8 +512,6 @@ ide_configuration_manager_init_worker (GTask        *task,
                                        GCancellable *cancellable)
 {
   IdeConfigurationManager *self = source_object;
-  g_autoptr(GFile) settings_file = NULL;
-  g_autoptr(GError) error = NULL;
   IdeContext *context;
 
   g_assert (G_IS_TASK (task));