[sysprof/wip/visualizers] visualizer-row: allow begin/end time to be NULL

[Christian Hergert <chergert src gnome org>]

commit fef48610dad785aa8f4248f9a3a6b1b8b13f7136
Author: Christian Hergert <chergert redhat com>
Date:   Fri Sep 30 17:33:33 2016 -0700

    visualizer-row: allow begin/end time to be NULL

 lib/sp-visualizer-row.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/lib/sp-visualizer-row.c b/lib/sp-visualizer-row.c
index 6983409..550c102 100644
--- a/lib/sp-visualizer-row.c
+++ b/lib/sp-visualizer-row.c
@@ -79,8 +79,6 @@ sp_visualizer_row_get_time_range (SpVisualizerRow *self,
   SpVisualizerRowPrivate *priv = sp_visualizer_row_get_instance_private (self);
 
   g_return_if_fail (SP_IS_VISUALIZER_ROW (self));
-  g_return_if_fail (begin_time != NULL);
-  g_return_if_fail (end_time != NULL);
 
   if (begin_time != NULL)
     *begin_time = priv->begin_time;