remove temporary fix for libjingle, update clientsignalingthread.cc for mediasessionclient.

[lukeweber]

We need to change the way we construct the mediasessionclient in both ios and android to match the latest and greatest from webrtc.

Example code here of what to do: https://github.com/lukeweber/libjingle-override/blob/master/talk/examples/call/callclient.cc

//sec settings sdespolicy(cricket::SEC_DISABLED), dtlspolicy(cricket::SEC_DISABLED), mediaclient->set_secure(sdespolicy);

//Session manager... ssl_identity.. should check this out. sessionmanager->set_secure(dtlspolicy); sessionmanager->set_identity(sslidentity.get()); sessionmanager->set_transport_protocol(transportprotocol);

///Just stuff that needs to be converted... if (!mediaengine) { mediaengine = cricket::MediaEngineFactory::Create(); }

if (!dataengine) { // TODO(pthatcher): Make it easy to make other types of data // engines. dataengine = new cricket::RtpDataEngine(); }

mediaclient = new cricket::MediaSessionClient( xmppclient->jid(), sessionmanager, mediaengine, dataengine, cricket::DeviceManagerFactory::Create());

I've temporarily enabled the old methods here, which need to be reverted once this is tested: https://github.com/lukeweber/libjingle-override/commit/ffe33c462ec11146d9e74766282345e13d9b6d38

[lukeweber]

Partially resolved with this commit. https://github.com/lukeweber/webrtc-jingle-client/commit/3d03edeba5691e6dff65c88c0d6a7801d1b16964