McuSupport: Remove outdated kits on KitManager::kitsLoaded

... instead while creating other kits.

Task-number: QTCREATORBUG-23891
Change-Id: I7ef3a6c92d94d8e6dd7499490a694be1d91ed35e
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/mcusupport/mcusupportoptionspage.cpp

@@ -231,7 +231,6 @@ void McuSupportOptionsWidget::apply()
         return;
 
     McuSupportOptions::registerQchFiles();
-    McuSupportOptions::removeOutdatedKits();
 
     const McuTarget *mcuTarget = currentMcuTarget();
     if (!mcuTarget)