Fix includes in utils.cpp

We do not need kxerrorhandler anymore and QX11Info already included.

utils.cpp

@@ -27,8 +27,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "utils.h"
 
-#include <kxerrorhandler.h>
 #include <X11/Xatom.h>
+#include <QWidget>
 
 #ifndef KCMRULES
 #include <assert.h>
@@ -37,7 +37,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include <X11/Xlib.h>
 #include <X11/extensions/shape.h>
-#include <QX11Info>
 
 #include <stdio.h>