obex-data-server: conflict with bluez5

Although this package builds with bluez5, it was removed from Fedora 20
[1] and is not used in bluez5-based GNOME [2], suggesting the bluez5
obexd is to be used instead.

[1] http://pkgs.fedoraproject.org/cgit/obex-data-server.git/log/?h=f20
[2] http://www.hadess.net/2013/11/bluetooth-file-sharing-obexpush-in.html



Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>