connman-conf is now a systemd oneshot and therefore doesn't need to
be sed'ed in to the ConnMan service file.
Note: this doesn't affect sysvinit where we provide a ConnMan
init script which checks for the presence of the wired-networking
script and, if it exists, executes it as part of the connman init.
[YOCTO #8399]
Signed-off-by: Joshua Lock <joshua.lock@collabora.co.uk> Signed-off-by: Ross Burton <ross.burton@intel.com>