Delete the xml package. Since we don't update it anymore (for instance, we...

Delete the xml package. Since we don't update it anymore (for instance, we didn't update it for constant dynamic and nest mates), we don't need to keep the code. Those who are still using it can use the latest packaged version on Maven Central.
1 job from delete-xml-package in 6 minutes and 30 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #6267
build

00:06:30