Simplify It2Me host shutdown

remoting/host/chromoting_host_unittest.cc

Index: remoting/host/chromoting_host_unittest.cc
diff --git a/remoting/host/chromoting_host_unittest.cc b/remoting/host/chromoting_host_unittest.cc
index 6cbc4eac6e86c52aed1a1682d5a3bfa306cc7519..079c7e25a8bbfed748afd9cc4867753013ced313 100644
--- a/remoting/host/chromoting_host_unittest.cc
+++ b/remoting/host/chromoting_host_unittest.cc
@@ -282,11 +282,6 @@ class ChromotingHostTest : public testing::Test {
     NotifyClientSessionClosed(0);
   }
 
-  // Notify |host_| that the authenticating client has been rejected.
-  void RejectAuthenticatingClient() {
-    host_->RejectAuthenticatingClient();
-  }
-
   // Notify |host_| that a client session has closed.
   void NotifyClientSessionClosed(int connection_index) {
     get_client(connection_index)->OnConnectionClosed(
@@ -480,21 +475,6 @@ TEST_F(ChromotingHostTest, Connect) {
   message_loop_.Run();
 }
 
-TEST_F(ChromotingHostTest, RejectAuthenticatingClient) {
-  Expectation start = ExpectHostAndSessionManagerStart();
-  EXPECT_CALL(host_status_observer_, OnClientAuthenticated(session_jid1_))
-      .WillOnce(InvokeWithoutArgs(
-      this, &ChromotingHostTest::RejectAuthenticatingClient));
-  ExpectClientDisconnected(
-      0, true, start,
-      InvokeWithoutArgs(this, &ChromotingHostTest::ShutdownHost));
-  EXPECT_CALL(host_status_observer_, OnShutdown());
-
-  host_->Start(xmpp_login_);
-  SimulateClientConnection(0, true, true);
-  message_loop_.Run();
-}
-
 TEST_F(ChromotingHostTest, AuthenticationFailed) {
   ExpectHostAndSessionManagerStart();
   EXPECT_CALL(host_status_observer_, OnAccessDenied(session_jid1_))