ProjectExplorer: Remove a 100ms delay in ApplicationLauncher

The underlying (and even local) process finished, it's unclear why
we need to withhold this information from user code for some time.

Change-Id: Id9cfbd7de9c8eab6fe63797d147043e15bfb4680
Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>

src/plugins/projectexplorer/applicationlauncher.cpp

@@ -355,7 +355,7 @@ void ApplicationLauncherPrivate::start(const IDevice::ConstPtr &device, bool loc
             m_exitCode = m_process->exitCode();
             m_exitStatus = m_process->exitStatus();
             m_listeningPid = 0;
-            QTimer::singleShot(100, this, [this] { emit q->finished(); });
+            emit q->finished();
         });
         connect(m_process.get(), &QtcProcess::errorOccurred,
                 this, &ApplicationLauncherPrivate::localProcessError);