Revert "Update parent pom to version 12-SNAPSHOT"

This reverts commit 6aa4ec58ac402a8b98aeb4b6692b118b4e876fa5.
Revert "PLF-5394 : Update PicketLinkIDMService configuration after upgrading to Picketlink IDM 1.4.3.Final"

This reverts commit fe89100c232ea955c174ad969e0b40a2f050ab07.