[mutter/bilelmoussaoui/gdk-x11-only: 433/442] default-plugin: Remove unnused field

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

commit ce95223a8be102f0eab6b6adc597f30cfe231526
Author: Bilal Elmoussaoui <belmouss redhat com>
Date:   Mon May 9 10:39:23 2022 +0200

    default-plugin: Remove unnused field
    
    This drops the usage of GdkRGBA

 src/compositor/plugins/default.c | 2 --
 1 file changed, 2 deletions(-)
---
diff --git a/src/compositor/plugins/default.c b/src/compositor/plugins/default.c
index 110f1f32b5..0040edabf3 100644
--- a/src/compositor/plugins/default.c
+++ b/src/compositor/plugins/default.c
@@ -149,8 +149,6 @@ typedef struct _DisplayTilePreview
 {
   ClutterActor   *actor;
 
-  GdkRGBA        *preview_color;
-
   MetaRectangle   tile_rect;
 } DisplayTilePreview;