[gnome-photos] gegl: Update the list of mandatory operations

[Debarshi Ray <debarshir src gnome org>]

commit c270cc98df7dc8ca2834f5d4a769e47f5d474a18
Author: Debarshi Ray <debarshir gnome org>
Date:   Mon Nov 27 18:05:57 2017 +0100

    gegl: Update the list of mandatory operations
    
    gegl:rotate-on-center is no longer used.
    
    Fallout from 42fc086eabe602fe9bcd4c9c1849efebdbb42601
    
    https://bugzilla.gnome.org/show_bug.cgi?id=781736

 src/photos-gegl.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/src/photos-gegl.c b/src/photos-gegl.c
index 13a05f6..d0cca69 100644
--- a/src/photos-gegl.c
+++ b/src/photos-gegl.c
@@ -59,7 +59,6 @@ static const gchar *REQUIRED_GEGL_OPS[] =
   "gegl:load",
   "gegl:noise-reduction",
   "gegl:nop",
-  "gegl:rotate-on-center",
   "gegl:save-pixbuf",
   "gegl:scale-ratio",
   "gegl:unsharp-mask",