[gimp] app: don't copy alpha in gimp_operation_profile_transform_process()

[Michael Natterer <mitch src gnome org>]

commit 6bc8b4ee7401cb4faced31e68e65b323a3010431
Author: Michael Natterer <mitch gimp org>
Date:   Sat Sep 10 01:09:11 2016 +0200

    app: don't copy alpha in gimp_operation_profile_transform_process()
    
    GimpColorTransform abstracts that lcms problem away.

 app/operations/gimpoperationprofiletransform.c |    6 ------
 1 files changed, 0 insertions(+), 6 deletions(-)
---
diff --git a/app/operations/gimpoperationprofiletransform.c b/app/operations/gimpoperationprofiletransform.c
index d22b9b5..2585265 100644
--- a/app/operations/gimpoperationprofiletransform.c
+++ b/app/operations/gimpoperationprofiletransform.c
@@ -275,12 +275,6 @@ gimp_operation_profile_transform_process (GeglOperation       *operation,
 
   if (self->transform)
     {
-      /* copy the alpha channel */
-      if (babl_format_has_alpha (self->dest_format))
-        babl_process (babl_fish (self->src_format,
-                                 self->dest_format),
-                      src, dest, samples);
-
       gimp_color_transform_process_pixels (self->transform,
                                            self->src_format,
                                            src,