Debugger: Remove remote setup sub-statemachinery

Not needed anymore in the world of RunWorkers.

Change-Id: Id7fb24fece6acb03de12f2677dd99a05c513e7a4
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
Reviewed-by: Vikas Pachdha <vikas.pachdha@qt.io>

src/plugins/remotelinux/remotelinuxdebugsupport.cpp

@@ -90,7 +90,6 @@ void LinuxDeviceDebugSupport::start()
     DebuggerStartParameters params;
     params.startMode = AttachToRemoteServer;
     params.closeMode = KillAndExitMonitorAtClose;
-    params.remoteSetupNeeded = false;
 
     if (isQmlDebugging()) {
         params.qmlServer.host = host;