Use of custom factorys is discouraged - clean up

LoggerConfiguratorIni.php:

• <p><b>Logger Factories</b></p>
  *
• The usage of custom logger factories is discouraged and no longer
• documented."

The classes:
LoggerDefaultCategoryFactory
LoggeFactory

are affected. The Factories are also used in the hierarchy class.
Factories of this kind are outdated and can be removed.