Debugger: Simplify raise-on-stop logic

Also slightly change meaning (now all stops may cause raising).

Change-Id: Ie3fee7371ab119e4e9747dc44a4d8ef2cd62c8d8
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

src/plugins/debugger/debuggerengine.h

@@ -283,7 +283,6 @@ signals:
      * a server start script should be used, but none is given.
      */
     void requestRemoteSetup();
-    void raiseWindow();
 
 protected:
     // The base notify*() function implementation should be sufficient