[gtk] assistant: Remove some unused defines

[Timm Bäder <baedert src gnome org>]

commit 0e2748006af0dbc1470e54584a0322fc89b2a75b
Author: Timm Bäder <mail baedert org>
Date:   Sun Sep 23 17:33:48 2018 +0200

    assistant: Remove some unused defines

 gtk/gtkassistant.c | 3 ---
 1 file changed, 3 deletions(-)
---
diff --git a/gtk/gtkassistant.c b/gtk/gtkassistant.c
index 51f7552ff4..91c0e2d9c5 100644
--- a/gtk/gtkassistant.c
+++ b/gtk/gtkassistant.c
@@ -79,9 +79,6 @@
 #include "a11y/gtkwindowaccessible.h"
 
 
-#define HEADER_SPACING 12
-#define ACTION_AREA_SPACING 12
-
 typedef struct _GtkAssistantPage GtkAssistantPage;
 
 struct _GtkAssistantPage