[gegl] Remove declarations of babl_backtrack.

[Daniel Sabo <daniels src gnome org>]

commit c769aec4f461a0c2568fbd365cd197ef1eb4bef2
Author: Daniel Sabo <DanielSabo gmail com>
Date:   Thu Mar 28 22:26:51 2013 -0700

    Remove declarations of babl_backtrack.

 gegl/buffer/gegl-buffer.c |    2 --
 gegl/graph/gegl-node.c    |    2 --
 2 files changed, 0 insertions(+), 4 deletions(-)
---
diff --git a/gegl/buffer/gegl-buffer.c b/gegl/buffer/gegl-buffer.c
index ba85aa1..a7ab523 100644
--- a/gegl/buffer/gegl-buffer.c
+++ b/gegl/buffer/gegl-buffer.c
@@ -510,8 +510,6 @@ gegl_buffer_tile_storage (GeglBuffer *buffer)
   return (GeglTileStorage *) tmp;
 }
 
-void babl_backtrack (void);
-
 static void gegl_buffer_storage_changed (GeglTileStorage     *storage,
                                          const GeglRectangle *rect,
                                          gpointer             userdata)
diff --git a/gegl/graph/gegl-node.c b/gegl/graph/gegl-node.c
index 1b24c88..f330cda 100644
--- a/gegl/graph/gegl-node.c
+++ b/gegl/graph/gegl-node.c
@@ -1827,8 +1827,6 @@ gegl_node_process (GeglNode *self)
 }
 #endif
 
-void babl_backtrack (void);
-
 GeglOperationContext *
 gegl_node_get_context (GeglNode *self,
                        gpointer  context_id)