[gegl] Removed some typechecks in performance critical internal API

[Øyvind Kolås <ok src gnome org>]

commit 59a9dac19e5ae1ef58d0bbb9da8d73c5e9c15d34
Author: �yvind Kolås <pippin gimp org>
Date:   Tue Nov 24 22:01:46 2009 +0000

    Removed some typechecks in performance critical internal API

 gegl/graph/gegl-visitable.c |    2 --
 gegl/graph/gegl-visitor.c   |   13 -------------
 2 files changed, 0 insertions(+), 15 deletions(-)
---
diff --git a/gegl/graph/gegl-visitable.c b/gegl/graph/gegl-visitable.c
index 472fcb5..e1dcfb7 100644
--- a/gegl/graph/gegl-visitable.c
+++ b/gegl/graph/gegl-visitable.c
@@ -76,8 +76,6 @@ gegl_visitable_depends_on (GeglVisitable *interface)
   GeglVisitableClass *interface_class;
   GSList             *depends_on = NULL;
 
-  g_return_val_if_fail (GEGL_IS_VISITABLE (interface), NULL);
-
   interface_class = GEGL_VISITABLE_GET_CLASS (interface);
 
   depends_on = interface_class->depends_on (interface);
diff --git a/gegl/graph/gegl-visitor.c b/gegl/graph/gegl-visitor.c
index 9dd6f2e..0af0500 100644
--- a/gegl/graph/gegl-visitor.c
+++ b/gegl/graph/gegl-visitor.c
@@ -313,9 +313,6 @@ void
 gegl_visitor_dfs_traverse (GeglVisitor   *self,
                            GeglVisitable *visitable)
 {
-  g_return_if_fail (GEGL_IS_VISITOR (self));
-  g_return_if_fail (GEGL_IS_VISITABLE (visitable));
-
   /* sets up the structures that keeps track of the */
   init_dfs_traversal (self, visitable);
   dfs_traverse (self, visitable);
@@ -394,8 +391,6 @@ init_bfs_traversal (GeglVisitor   *self,
   GSList *depends_on_list;
   GSList *llink;
 
-  g_return_if_fail (GEGL_IS_VISITOR (self));
-
   insert (self, visitable);
 
   depends_on_list = gegl_visitable_depends_on (visitable);
@@ -432,8 +427,6 @@ gegl_visitor_bfs_traverse (GeglVisitor   *self,
 {
   GQueue  queue = G_QUEUE_INIT;
 
-  g_return_if_fail (GEGL_IS_VISITOR (self));
-
   /* Init all visitables */
   init_bfs_traversal (self, visitable);
 
@@ -498,9 +491,6 @@ gegl_visitor_visit_pad (GeglVisitor *self,
 {
   GeglVisitorClass *klass;
 
-  g_return_if_fail (GEGL_IS_VISITOR (self));
-  g_return_if_fail (GEGL_IS_PAD (pad));
-
   klass = GEGL_VISITOR_GET_CLASS (self);
 
   if (klass->visit_pad)
@@ -523,9 +513,6 @@ gegl_visitor_visit_node (GeglVisitor *self,
 {
   GeglVisitorClass *klass;
 
-  g_return_if_fail (GEGL_IS_VISITOR (self));
-  g_return_if_fail (GEGL_IS_NODE (node));
-
   klass = GEGL_VISITOR_GET_CLASS (self);
 
   if (klass->visit_node)