[gnome-sudoku] Remove now-unused include

[Michael Catanzaro <mcatanzaro src gnome org>]

commit ff030d145b0f097472628d0f026e824df0dcca3f
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Wed Aug 6 19:38:15 2014 -0500

    Remove now-unused include

 lib/qqwing-wrapper.cpp |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/lib/qqwing-wrapper.cpp b/lib/qqwing-wrapper.cpp
index 9136f64..e94de57 100644
--- a/lib/qqwing-wrapper.cpp
+++ b/lib/qqwing-wrapper.cpp
@@ -12,7 +12,6 @@
 #include "qqwing-wrapper.h"
 
 #include <algorithm>
-#include <cstring>
 #include <iostream>
 
 #include <glib.h>