[gtk/matthiasc/for-master: 6/6] gsk: Remove an unused debug flag

[Matthias Clasen <matthiasc src gnome org>]

commit 5df13562957277977cf0a7688c153d58be9e74d3
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Jul 19 21:21:41 2020 -0400

    gsk: Remove an unused debug flag
    
    GSK_DEBUG_DIFF was not used anywhere, so remove it.

 gsk/gskdebug.c        | 3 +--
 gsk/gskdebugprivate.h | 1 -
 2 files changed, 1 insertion(+), 3 deletions(-)
---
diff --git a/gsk/gskdebug.c b/gsk/gskdebug.c
index 68674b7fed..3538cec0e5 100644
--- a/gsk/gskdebug.c
+++ b/gsk/gskdebug.c
@@ -11,8 +11,7 @@ static const GdkDebugKey gsk_debug_keys[] = {
   { "surface", GSK_DEBUG_SURFACE, "Information about surfaces" },
   { "fallback", GSK_DEBUG_FALLBACK, "Information about fallbacks" },
   { "glyphcache", GSK_DEBUG_GLYPH_CACHE, "Information about glyph caching" },
-  { "diff", GSK_DEBUG_DIFF, "Show differences" },
-  { "geometry", GSK_DEBUG_GEOMETRY, "Show borders" },
+  { "geometry", GSK_DEBUG_GEOMETRY, "Show borders (when using cairo)" },
   { "full-redraw", GSK_DEBUG_FULL_REDRAW, "Force full redraws" },
   { "sync", GSK_DEBUG_SYNC, "Sync after each frame" },
   { "vulkan-staging-image", GSK_DEBUG_VULKAN_STAGING_IMAGE, "Use a staging image for Vulkan texture upload" 
},
diff --git a/gsk/gskdebugprivate.h b/gsk/gskdebugprivate.h
index acf9bf7547..345c1555ab 100644
--- a/gsk/gskdebugprivate.h
+++ b/gsk/gskdebugprivate.h
@@ -14,7 +14,6 @@ typedef enum {
   GSK_DEBUG_VULKAN                = 1 <<  5,
   GSK_DEBUG_FALLBACK              = 1 <<  6,
   GSK_DEBUG_GLYPH_CACHE           = 1 <<  7,
-  GSK_DEBUG_DIFF                  = 1 <<  8,
   /* flags below may affect behavior */
   GSK_DEBUG_GEOMETRY              = 1 <<  9,
   GSK_DEBUG_FULL_REDRAW           = 1 << 10,