Removed bluedevil-helper (OPP and FTP server)

Currently we're using obex-data-server and obexd-client in BlueDevil:
obex-data-server:
-OPP server
-FTP server
-ftp client

obexd-client:
-Send files

obex-data-server is almost unmaintained, we haven't received feedback
from the last 2 reported bugs... so it is time for us to move
completely to obexd.

The new server will be implemented within the KDED, obexd-server makes
that easy