[gedit] Utils: remove IS_VALID_BOOLEAN() (deprecated)

[Sébastien Wilmet <swilmet src gnome org>]

commit 15d4ca923f9cf839260aa96a866552d47a0209b8
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Wed Nov 13 16:14:44 2019 +0100

    Utils: remove IS_VALID_BOOLEAN() (deprecated)

 docs/reference/gedit-sections.txt |  1 -
 gedit/gedit-utils.h               | 10 ----------
 2 files changed, 11 deletions(-)
---
diff --git a/docs/reference/gedit-sections.txt b/docs/reference/gedit-sections.txt
index 91617c84e..e5ce03854 100644
--- a/docs/reference/gedit-sections.txt
+++ b/docs/reference/gedit-sections.txt
@@ -351,7 +351,6 @@ gedit_menu_extension_get_type
 <FILE>gedit-utils</FILE>
 GBOOLEAN_TO_POINTER
 GPOINTER_TO_BOOLEAN
-IS_VALID_BOOLEAN
 gedit_utils_menu_position_under_widget
 gedit_utils_menu_position_under_tree_view
 gedit_utils_str_middle_truncate
diff --git a/gedit/gedit-utils.h b/gedit/gedit-utils.h
index 32f97e57e..4fcd268db 100644
--- a/gedit/gedit-utils.h
+++ b/gedit/gedit-utils.h
@@ -31,16 +31,6 @@ G_BEGIN_DECLS
 #define GBOOLEAN_TO_POINTER(i) (GINT_TO_POINTER ((i) ? 2 : 1))
 #define GPOINTER_TO_BOOLEAN(i) ((gboolean) ((GPOINTER_TO_INT(i) == 2) ? TRUE : FALSE))
 
-/**
- * IS_VALID_BOOLEAN:
- * @v: a gboolean.
- *
- * Deprecated: 3.18
- */
-#ifndef GEDIT_DISABLE_DEPRECATED
-#define IS_VALID_BOOLEAN(v) (((v == TRUE) || (v == FALSE)) ? TRUE : FALSE)
-#endif
-
 enum { GEDIT_ALL_WORKSPACES = 0xffffffff };
 
 void                       gedit_utils_menu_position_under_widget             (GtkMenu         *menu,