[gtk+] Do not use "return" when chaining up to a void function

[Paolo Borelli <pborelli src gnome org>]

commit f4510c93b7f1e73fd52666ae2a508448ac98e6f4
Author: Paolo Borelli <pborelli gnome org>
Date:   Tue Feb 17 14:17:53 2015 +0100

    Do not use "return" when chaining up to a void function

 gdk/gdkwindow.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index 2de1fa3..6e6e56e 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -3905,10 +3905,10 @@ gdk_window_process_updates (GdkWindow *window,
 {
   g_return_if_fail (GDK_IS_WINDOW (window));
 
-  return gdk_window_process_updates_with_mode (window,
-                                               update_children ?
-                                               PROCESS_UPDATES_WITH_ALL_CHILDREN :
-                                               PROCESS_UPDATES_NO_RECURSE);
+  gdk_window_process_updates_with_mode (window,
+                                        update_children ?
+                                        PROCESS_UPDATES_WITH_ALL_CHILDREN :
+                                        PROCESS_UPDATES_NO_RECURSE);
 }
 
 static void
@@ -11123,7 +11123,7 @@ gdk_window_set_opaque_region (GdkWindow      *window,
   impl_class = GDK_WINDOW_IMPL_GET_CLASS (window->impl);
 
   if (impl_class->set_opaque_region)
-    return impl_class->set_opaque_region (window, region);
+    impl_class->set_opaque_region (window, region);
 }
 
 /**