[devhelp] KeywordModel: remove useless #includes

[Sébastien Wilmet <swilmet src gnome org>]

commit e9dd6e8f36b8771a8ea0052a8f8133c80deab16a
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Fri Jan 19 13:26:38 2018 +0100

    KeywordModel: remove useless #includes

 src/dh-keyword-model.c |    2 +-
 src/dh-keyword-model.h |    1 -
 2 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/src/dh-keyword-model.c b/src/dh-keyword-model.c
index cccc048..879db21 100644
--- a/src/dh-keyword-model.c
+++ b/src/dh-keyword-model.c
@@ -22,8 +22,8 @@
 
 #include "dh-keyword-model.h"
 #include <gtk/gtk.h>
-#include <string.h>
 #include "dh-book.h"
+#include "dh-book-manager.h"
 #include "dh-search-context.h"
 #include "dh-util.h"
 
diff --git a/src/dh-keyword-model.h b/src/dh-keyword-model.h
index 7586533..d76bc64 100644
--- a/src/dh-keyword-model.h
+++ b/src/dh-keyword-model.h
@@ -22,7 +22,6 @@
 
 #include <glib-object.h>
 #include "dh-link.h"
-#include "dh-book-manager.h"
 
 G_BEGIN_DECLS