[gtk+] Revert "GtkGrid: Add a few NULL checks"

[Matthias Clasen <matthiasc src gnome org>]

commit 7fd307f8815477e85fbe1c689c21d75b3db45ea5
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jul 17 20:18:34 2015 -0400

    Revert "GtkGrid: Add a few NULL checks"
    
    This reverts commit e215db6da21fc7c54f49b247afabc06a18d60513.
    
    We are actually requiring non-NULL out arguments here now.

 gtk/gtkgrid.c |    7 ++-----
 1 files changed, 2 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtkgrid.c b/gtk/gtkgrid.c
index b12af75..1b821b2 100644
--- a/gtk/gtkgrid.c
+++ b/gtk/gtkgrid.c
@@ -1127,11 +1127,8 @@ gtk_grid_request_sum (GtkGridRequest *request,
       nat -= linedata->spacing;
     }
 
-  if (minimum)
-    *minimum = min;
-
-  if (natural)
-    *natural = nat;
+  *minimum = min;
+  *natural = nat;
 }
 
 /* Computes minimum and natural fields of lines.