Since the GTK Hob will not use the server/client split model, thus
remove it from current Hob code. But we still keep the core mechanism
in bitbake server.
(From Poky rev: 983ea0265a53e0725dcbf9085ea767ebbc155ae5)
(Bitbake rev: 8c129e05a94d457860d883c9b2934a5559de8d9b)
Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>