QtSupport: Don't save QtVersions directly after creation

Change-Id: I379262734bf11776d77576b8fca698ce691654b8
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

src/plugins/qtsupport/qtversionmanager.cpp

@@ -119,7 +119,6 @@ void QtVersionManager::triggerQtVersionRestore()
 
     emit m_instance->qtVersionsLoaded();
     emit m_instance->qtVersionsChanged(m_versions.keys(), QList<int>(), QList<int>());
-    saveQtVersions();
 
     const FilePath configFileName = globalSettingsFileName();
     if (configFileName.exists()) {