[gnome-control-center] Followup cleanup

[Matthias Clasen <matthiasc src gnome org>]

commit 09f6747d5c0cb2217280371e3d82d77c0e4cc86f
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Apr 21 14:25:42 2014 -0400

    Followup cleanup
    
    Ifdef the functions too, otherwise they will cause the compiler
    to complain about unused statics when building without X.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=728672

 panels/info/cc-info-panel.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/panels/info/cc-info-panel.c b/panels/info/cc-info-panel.c
index 667b3de..e77089f 100644
--- a/panels/info/cc-info-panel.c
+++ b/panels/info/cc-info-panel.c
@@ -290,6 +290,7 @@ graphics_data_free (GraphicsData *gdata)
   g_slice_free (GraphicsData, gdata);
 }
 
+#ifdef GDK_WINDOWING_X11
 static char *
 get_graphics_data_glx_renderer ()
 {
@@ -422,6 +423,7 @@ get_graphics_data_xorg_vesa_hardware (void)
 
   return result;
 }
+#endif
 
 static GraphicsData *
 get_graphics_data (void)