[gtk/wip/baedert/for-master] ngl: Remove unused function

[Timm Bäder <baedert src gnome org>]

commit ea93c4064419094afb9bf74ab4bc8471d99acd2c
Author: Timm Bäder <mail baedert org>
Date:   Sun Mar 21 18:00:10 2021 +0100

    ngl: Remove unused function

 gsk/ngl/gsknglrenderjob.c | 31 -------------------------------
 1 file changed, 31 deletions(-)
---
diff --git a/gsk/ngl/gsknglrenderjob.c b/gsk/ngl/gsknglrenderjob.c
index dc7935b699..f6cf738353 100644
--- a/gsk/ngl/gsknglrenderjob.c
+++ b/gsk/ngl/gsknglrenderjob.c
@@ -1619,37 +1619,6 @@ gsk_ngl_render_job_visit_rounded_clip_node (GskNglRenderJob     *job,
     }
 }
 
-static inline void
-sort_border_sides (const GdkRGBA *colors,
-                   int           *indices)
-{
-  gboolean done[4] = {0, 0, 0, 0};
-  guint cur = 0;
-
-  for (guint i = 0; i < 3; i++)
-    {
-      if (done[i])
-        continue;
-
-      indices[cur] = i;
-      done[i] = TRUE;
-      cur++;
-
-      for (guint k = i + 1; k < 4; k ++)
-        {
-          if (memcmp (&colors[k], &colors[i], sizeof (GdkRGBA)) == 0)
-            {
-              indices[cur] = k;
-              done[k] = TRUE;
-              cur++;
-            }
-        }
-
-      if (cur >= 4)
-        break;
-    }
-}
-
 static inline void
 gsk_ngl_render_job_visit_rect_border_node (GskNglRenderJob     *job,
                                            const GskRenderNode *node)