ISSUE-28703: Remove obsolete setters related to dbmanager.jar
build*.xml file from backoffice repo did still pass/set a few attributes related to obsolete dbmanager.jar when calling dbsm ant tasks. Internally those were long unusued. Remove the obsolete setters/getter. Note: This change in dbsm only works together with commit 914cb5f04a in backoffice repo which stops setting the remove filter & excludeobjects values.