[gnome-builder] util: remove single use of IDE_FALLBACK

[Christian Hergert <chergert src gnome org>]

commit 4de5bad19dbb5786b3628fb52e07baef4ef35405
Author: Christian Hergert <chergert redhat com>
Date:   Sun Nov 26 16:04:16 2017 -0800

    util: remove single use of IDE_FALLBACK
    
    We didn't use this as much as anticipated, so we might as well remove the
    only thing left from macros so we can drop the file.

 src/libide/ide-macros.h                            |    9 +--------
 .../flatpak/gbp-flatpak-configuration-provider.c   |    4 +++-
 2 files changed, 4 insertions(+), 9 deletions(-)
---
diff --git a/src/libide/ide-macros.h b/src/libide/ide-macros.h
index ca59e5b..e194b69 100644
--- a/src/libide/ide-macros.h
+++ b/src/libide/ide-macros.h
@@ -18,15 +18,8 @@
 
 #pragma once
 
-#include <glib-object.h>
-#include <string.h>
+#include <glib.h>
 
 G_BEGIN_DECLS
 
-#if __GNUC__ >= 7
-# define IDE_FALLTHROUGH __attribute__((fallthrough))
-#else
-# define IDE_FALLTHROUGH
-#endif
-
 G_END_DECLS
diff --git a/src/plugins/flatpak/gbp-flatpak-configuration-provider.c 
b/src/plugins/flatpak/gbp-flatpak-configuration-provider.c
index d1a6fff..e01ab8f 100644
--- a/src/plugins/flatpak/gbp-flatpak-configuration-provider.c
+++ b/src/plugins/flatpak/gbp-flatpak-configuration-provider.c
@@ -751,7 +751,9 @@ gbp_flatpak_configuration_provider_manifest_changed (GbpFlatpakConfigurationProv
       else
         g_clear_pointer (&filename, g_free);
       new_config_file = other_file;
-      IDE_FALLTHROUGH;
+#if G_GNUC_CHECK_VERSION(7,0)
+      __attribute__((fallthrough));
+#endif
     case G_FILE_MONITOR_EVENT_CREATED:
     case G_FILE_MONITOR_EVENT_CHANGES_DONE_HINT:
     case G_FILE_MONITOR_EVENT_MOVED_IN: