Remove duplicate screen-lock icons in ROX-mode

In ROX-mode icons-on-desktop, the screen-lock icon is duplicated, as shown:

Fixed. In ROX-mode the screen-lock icon will be on the desktop only. In JWM-mode it will be in the tray. Achieved by editing /root/.xinitrc

Note, I have brought back the "show desktop" icon in the tray. It is useful.   

Tags: easy