[dia] [cleanup] Remove unused constants

[Hans Breuer <hans src gnome org>]

commit 9062dc5531db10a97b3208b5740b7cfae910801b
Author: Hans Breuer <hans breuer org>
Date:   Sun Dec 15 20:12:44 2013 +0100

    [cleanup] Remove unused constants

 lib/dia_xml.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/lib/dia_xml.c b/lib/dia_xml.c
index c90243a..8d349cc 100644
--- a/lib/dia_xml.c
+++ b/lib/dia_xml.c
@@ -1353,9 +1353,6 @@ data_add_composite(AttributeNode attr, const char *type)
   return data_node;
 }
 
-#define BUFSIZE 2048
-#define OVERRUN_SAFETY 16
-
 /*!
  * \brief Save an XML document to a file.
  * @param filename The file to save to.