I am converting my 6.2 portal to 7.3. I noticed that the class  com.liferay.portal.kernel.spring.util.SpringFactoryUtil has been removed as of 7.3. I think it was in 7.1-latest but I am using 7.3.6-GA7. I need a way to create a sessionFactory from a datasource, and now I cannot due to the deprecation of SpringFactoryUtil. Can I use something different? Is there any information on why this was removed?