pkg: removed duplicate listed files

this should solve:
warning: File listed twice: /etc/naemon/plugins/plugins-enabled/business_process
warning: File listed twice: /etc/naemon/plugins/plugins-enabled/conf
warning: File listed twice: /etc/naemon/plugins/plugins-enabled/minemap
warning: File listed twice: /etc/naemon/plugins/plugins-enabled/mobile
warning: File listed twice: /etc/naemon/plugins/plugins-enabled/panorama
warning: File listed twice: /etc/naemon/plugins/plugins-enabled/statusmap

Signed-off-by: Sven Nierlein <sven@consol.de>