[gnome-builder] buffer: use dzl_clear_source()

[Christian Hergert <chergert src gnome org>]

commit 2870d25b38b347f81b63b3b94e8258a887ec6672
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jan 3 19:26:27 2018 -0800

    buffer: use dzl_clear_source()

 src/libide/buffers/ide-buffer.c |    6 +-----
 1 files changed, 1 insertions(+), 5 deletions(-)
---
diff --git a/src/libide/buffers/ide-buffer.c b/src/libide/buffers/ide-buffer.c
index b171a14..64305c3 100644
--- a/src/libide/buffers/ide-buffer.c
+++ b/src/libide/buffers/ide-buffer.c
@@ -2830,11 +2830,7 @@ ide_buffer_hold (IdeBuffer *self)
   if (priv->context == NULL)
     return;
 
-  if (priv->reclamation_handler != 0)
-    {
-      g_source_remove (priv->reclamation_handler);
-      priv->reclamation_handler = 0;
-    }
+  dzl_clear_source (&priv->reclamation_handler);
 }
 
 void