There is no dependency, so make the runtime manager an real singelton.

Reviewed-by: ck

src/plugins/qt4projectmanager/qt4projectmanagerplugin.h

@@ -56,7 +56,6 @@ class QMakeStepFactory;
 class MakeStepFactory;
 class EmbeddedPropertiesPage;
 class GettingStartedWelcomePage;
-class MaemoManager;
 
 class Qt4ProjectManagerPlugin : public ExtensionSystem::IPlugin
 {
@@ -86,7 +85,6 @@ private:
     ProjectExplorer::ProjectExplorerPlugin *m_projectExplorer;
     ProFileEditorFactory *m_proFileEditorFactory;
     Qt4Manager *m_qt4ProjectManager;
-    MaemoManager *m_maemoManager;
 
     int m_projectContext;