iOS: Remove the step to spawn the app before launch on iOS

This causes timing issues on certain devices resulting in
app startup failure

Task-number: QTCREATORBUG-17336
Change-Id: I190b5415bdef1fc80a415b0cb872b95b883db5d8
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/ios/iosdebugsupport.cpp

@@ -169,8 +169,6 @@ IosDebugSupport::IosDebugSupport(IosRunConfiguration *runConfig,
             m_runner, &IosRunner::start);
     connect(m_runControl, &RunControl::finished,
             m_runner, &IosRunner::stop);
-    connect(m_runControl, &DebuggerRunControl::stateChanged,
-            m_runner, &IosRunner::debuggerStateChanged);
 
     connect(m_runner, &IosRunner::gotServerPorts,
         this, &IosDebugSupport::handleServerPorts);