[gnome-builder/wip/gtk4-port] code: remove unused header

[Christian Hergert <chergert src gnome org>]

commit b1ad4eea752fdc267c4bd71be0d3c82b6c5e261a
Author: Christian Hergert <chergert redhat com>
Date:   Thu Sep 23 16:34:24 2021 -0700

    code: remove unused header

 src/libide/code/ide-highlight-index.c | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/src/libide/code/ide-highlight-index.c b/src/libide/code/ide-highlight-index.c
index 4cf83e3f4..9d3142173 100644
--- a/src/libide/code/ide-highlight-index.c
+++ b/src/libide/code/ide-highlight-index.c
@@ -22,7 +22,6 @@
 
 #include "config.h"
 
-#include <dazzle.h>
 #include <string.h>
 
 #include "ide-highlight-index.h"