[gegl] Make it possible to #include both gegl.h and gegl-plugin.h

[Øyvind Kolås <ok src gnome org>]

commit 5087c229a606b00c255c1f3da5b4e2923c89c071
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu May 28 00:55:58 2015 +0200

    Make it possible to #include both gegl.h and gegl-plugin.h
    
    https://bugzilla.gnome.org/show_bug.cgi?id=750000

 gegl/operation/gegl-operation.c |    1 +
 gegl/operation/gegl-operation.h |    3 ---
 2 files changed, 1 insertions(+), 3 deletions(-)
---
diff --git a/gegl/operation/gegl-operation.c b/gegl/operation/gegl-operation.c
index 4bcf029..8c24ab9 100644
--- a/gegl/operation/gegl-operation.c
+++ b/gegl/operation/gegl-operation.c
@@ -27,6 +27,7 @@
 #include "gegl-types-internal.h"
 #include "gegl-operation.h"
 #include "gegl-operation-context.h"
+#include "gegl-operations-util.h"
 #include "graph/gegl-node-private.h"
 #include "graph/gegl-connection.h"
 #include "graph/gegl-pad.h"
diff --git a/gegl/operation/gegl-operation.h b/gegl/operation/gegl-operation.h
index 5fc5deb..62d2f24 100644
--- a/gegl/operation/gegl-operation.h
+++ b/gegl/operation/gegl-operation.h
@@ -227,9 +227,6 @@ const Babl  * gegl_operation_get_source_format (GeglOperation *operation,
 GeglNode    * gegl_operation_get_source_node   (GeglOperation *operation,
                                                 const gchar   *pad_name);
 
-GParamSpec ** gegl_operation_list_properties   (const gchar *operation_type,
-                                                guint       *n_properties_p);
-
 /* API to change  */
 void          gegl_operation_class_set_key     (GeglOperationClass *klass,
                                                 const gchar *key_name,