Revert "DELTASPIKE-777 added plugin-version"

This reverts commit 311aef6b54715b6ac6141ed9dbe5e04abeda40aa.
Revert "DELTASPIKE-777 moved config to profile"

This reverts commit cd805aabc4191545ca84f8f0832efe7d193c77e1.
DELTASPIKE-792 - Fix javadoc generation for JDK < 8