[glib] Remove useless NULL check before g_free()

[Xavier Claessens <xclaesse src gnome org>]

commit d488d75909a7f5bdc13865a155ea583fcc3cb07f
Author: Xavier Claessens <xavier claessens collabora com>
Date:   Mon Sep 21 10:50:38 2015 -0400

    Remove useless NULL check before g_free()

 glib/glib-autocleanups.h |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/glib/glib-autocleanups.h b/glib/glib-autocleanups.h
index cab6408..f3929c0 100644
--- a/glib/glib-autocleanups.h
+++ b/glib/glib-autocleanups.h
@@ -23,10 +23,9 @@
 
 static inline void
 g_autoptr_cleanup_generic_gfree (void *p)
-{ 
+{
   void **pp = (void**)p;
-  if (*pp)
-    g_free (*pp);
+  g_free (*pp);
 }
 
 static inline void