[gegl] noise-perlin: remove unused seed property

[Øyvind Kolås <ok src gnome org>]

commit f341df2dc9c27223c5b9ba9c092902812fceb476
Author: Øyvind Kolås <pippin gimp org>
Date:   Sun Feb 26 22:47:59 2017 +0100

    noise-perlin: remove unused seed property

 operations/common/noise-perlin.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)
---
diff --git a/operations/common/noise-perlin.c b/operations/common/noise-perlin.c
index 945889b..749cad5 100644
--- a/operations/common/noise-perlin.c
+++ b/operations/common/noise-perlin.c
@@ -33,10 +33,6 @@ property_double (zoff,  _("Z offset"), -1)
 property_int (n, _("Iterations"), 3)
   value_range     (0, 20)
 
-  /* XXX: what? */
-property_double (seed, _("Random seed"), 0.0)
-  ui_range (0.0, 100.0)
-
 #else
 
 #define GEGL_OP_POINT_RENDER