[gimp] app: remove unused variable from last commit

[Michael Natterer <mitch src gnome org>]

commit 19fc49a972c6ecb9dff9b30dfcf62bd444dd15e0
Author: Michael Natterer <mitch gimp org>
Date:   Sat Mar 17 21:06:51 2012 +0100

    app: remove unused variable from last commit

 app/core/gimpimage.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/app/core/gimpimage.c b/app/core/gimpimage.c
index a43741c..d2c5b3a 100644
--- a/app/core/gimpimage.c
+++ b/app/core/gimpimage.c
@@ -1158,7 +1158,6 @@ gimp_image_real_mode_changed (GimpImage *image)
 {
   GimpImagePrivate *private = GIMP_IMAGE_GET_PRIVATE (image);
   GList            *layers;
-  GList            *layer;
 
   /* FIXME gegl migration hack */
   layers = gimp_item_stack_get_item_list (GIMP_ITEM_STACK (private->layers->container));