start-user-session@USER.service does not exist anymore

[systemd] Remove non existent service reference.

Signed-off-by: Marko Saukko <marko.saukko@jolla.com>
Drop Requires= from droid-hal-init.

[systemd] Drop Requires= from droid-hal-init.

Signed-off-by: Marko Saukko <marko.saukko@jolla.com>