Remove remoting::protocol::Transport interface.

remoting/protocol/jingle_session_manager.cc

Index: remoting/protocol/jingle_session_manager.cc
diff --git a/remoting/protocol/jingle_session_manager.cc b/remoting/protocol/jingle_session_manager.cc
index 587cefbfe6b8f77b903bf0ab2024d23f74b2fcfb..c0a0d8a6d88365877602af8ef7623c7a8a714172 100644
--- a/remoting/protocol/jingle_session_manager.cc
+++ b/remoting/protocol/jingle_session_manager.cc
@@ -52,9 +52,6 @@ void JingleSessionManager::set_protocol_config(
 scoped_ptr<Session> JingleSessionManager::Connect(
     const std::string& host_jid,
     scoped_ptr<Authenticator> authenticator) {
-  // Notify |transport_factory_| that it may be used soon.
-  transport_factory_->PrepareTokens();
-
   scoped_ptr<JingleSession> session(new JingleSession(this));
   session->StartConnection(host_jid, authenticator.Pass());
   sessions_[session->session_id_] = session.get();
@@ -107,9 +104,6 @@ bool JingleSessionManager::OnSignalStrategyIncomingStanza(
 
     SendReply(stanza, JingleMessageReply::NONE);
 
-    // Notify |transport_factory_| that it may be used soon.
-    transport_factory_->PrepareTokens();
-
     scoped_ptr<Authenticator> authenticator =
         authenticator_factory_->CreateAuthenticator(
             signal_strategy_->GetLocalJid(), message.from,