Get rid of using ProtocolHandlerFactory, part 1

This gets rid of completely dead code in NetconfSshClientDispatcher. It
already talks directly to the initializer.

Change-Id: Ieaac37a3335e87032730cfa65e94bb59f26dd3c1
Signed-off-by: Robert Varga <rovarga@cisco.com>
Get rid of using ProtocolHandlerFactory, part 2

Now that we do not rely on passing it around, we can safely keep
NetconfHandlerFactory wired directly to the
ProtocolMessageEncoder/Decoder.

Change-Id: I47a9b76f8d9bbb98304e06960e5a85d2730994f7
Signed-off-by: Robert Varga <rovarga@cisco.com>
Merge "Get rid of using ProtocolHandlerFactory, part 1"
Merge "Get rid of using ProtocolHandlerFactory, part 2"