build: don't hide the stdbool include from g-ir-scanner
g-i recently lost the ability to infer the bool type without a stdbool include.
While this is about to be fixed in g-i (https://gitlab.gnome.org/GNOME/gobject-introspection/merge_requests/116)
I don't see a reason why we should hide this in the first place, so remove the ifdef guard.
# define GRAPHENE_END_DECLS
#endif
-#ifndef __GI_SCANNER__
#if defined(_MSC_VER) && !defined(__bool_true_false_are_defined) && (_MSC_VER < 1800)
typedef int bool;
# define false 0
@@ -79,7 +78,6 @@ typedef int bool;
#else
# include <stdbool.h>
#endif
-#endif
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
#define _GRAPHENE_DEPRECATED __attribute__((__deprecated__))
