whonix-(gw|ws)-kde-desktop-conf: removed kde's default network manager (NM) system tray icon, because it showed a misleading symbol (Whonix does not use NM. It uses ifupdown. NM is only installed by default to ease setting up VPNs.) Thanks to HulaHoop for the report. - https://www.whonix.org/forum/index.php/topic,532.0.html