Revert "load private_wifi module"

This reverts commit 621aace4417eba1b20815e5242948a470c3eb33d.
Revert "updated packages" - not a good idea!

This reverts commit 57cea5f235d40e62f99bf35fdb155eb1a9bc7108.
moved freifunk fulda specific packages into separate repo
removed unneeded legacy definitions from site.conf
remove packages from gluon repo
move fffd-packages definition to site directory
remove package gluon-legacy