[gegl] operation-point-render: Remove redundant comment

[Debarshi Ray <debarshir src gnome org>]

commit d93d09af073142c8854ecad85d086d412472b646
Author: Debarshi Ray <debarshir gnome org>
Date:   Mon Dec 18 19:47:00 2017 +0100

    operation-point-render: Remove redundant comment
    
    It restates something that is just too obvious. It should either be
    repeated in every "point" sub-class, or just be removed from here. The
    latter seems more sensible.

 gegl/operation/gegl-operation-point-render.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/gegl/operation/gegl-operation-point-render.c b/gegl/operation/gegl-operation-point-render.c
index d202fea..0ed3c7f 100644
--- a/gegl/operation/gegl-operation-point-render.c
+++ b/gegl/operation/gegl-operation-point-render.c
@@ -59,9 +59,6 @@ gegl_operation_point_render_class_init (GeglOperationPointRenderClass *klass)
 
   operation_class->detect = detect;
   operation_class->no_cache = FALSE;
-  operation_class->get_cached_region = NULL; /* we are able to compute anything
-                                                 anywhere when we're our kind
-                                                 of class */
   operation_class->threaded = TRUE;
 }