Revert "XCOMMONS-1974: Upgrade to Maven WAR plugin 3.3.0"
Revert "XCOMMONS-1974: Upgrade to Maven WAR plugin 3.3.0"

This reverts commit 3c34402ceffb4c8a0f306ba0e61c98f68eebbe77.
Reverting until we find a fix for https://issues.apache.org/jira/browse/MWAR-437

xwiki/xwiki-commons,xwiki/xwiki-commons