move unmaintained files into outdated folder

If an old port is resurrected to work with current version code, its files
can be relocated to the appropriate sys or win folder as required.

In the meantime, the burden of upkeep can be avoided for the stuff in the
outdated folder for now.

outdated/win/Qt3/qt3_kde0.h

@@ -0,0 +1,11 @@
+/* NetHack 3.6	qt_kde0.h	$NHDT-Date: 1432512779 2015/05/25 00:12:59 $  $NHDT-Branch: master $:$NHDT-Revision: 1.8 $ */
+/* Copyright (c) Warwick Allison, 1999. */
+/* NetHack may be freely redistributed.  See license for details. */
+
+#ifndef QT_DUMMYKDE
+#define QT_DUMMYKDE
+class KTopLevelWidget : public QMainWindow
+{
+    Q_OBJECT
+};
+#endif