Move "Show Desktop" icon from Settings to Utility category.
This resolves bug 1903 and at the same time leaves the icon available to users.
Users can now even add this icon to a panel if they wish.

diff --git a/twin/kcmtwin/showdesktop.desktop b/twin/kcmtwin/showdesktop.desktop
index db9f005..210202f 100644
--- a/twin/kcmtwin/showdesktop.desktop
+++ b/twin/kcmtwin/showdesktop.desktop
@@ -129,5 +129,5 @@
 Exec=dcop kdesktop KDesktopIface toggleShowDesktop
 Icon=desktop
 Type=Application
-Categories=Qt;TDE;X-TDE-settings-desktop;
-NoDisplay=true
+Categories=Qt;TDE;Utility;
+