[gegl] unpremultiply: remove unused #define

[Øyvind Kolås <ok src gnome org>]

commit a1d4c6df578a047cb54073e709e376e4ba276cec
Author: Øyvind Kolås <pippin gimp org>
Date:   Thu Mar 30 00:02:18 2017 +0200

    unpremultiply: remove unused #define

 operations/common/unpremultiply.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/operations/common/unpremultiply.c b/operations/common/unpremultiply.c
index 7170982..c351b1a 100644
--- a/operations/common/unpremultiply.c
+++ b/operations/common/unpremultiply.c
@@ -27,7 +27,6 @@
 #define GEGL_OP_POINT_FILTER
 #define GEGL_OP_NAME     unpremultiply
 #define GEGL_OP_C_SOURCE unpremultiply.c
-#define GEGLV4
 
 #include "gegl-op.h"