Duplicate pom.xml entries

[kasemir]

core/formula/pom.xml has two copies of the core-util dependency,
and app/save-and-restore/app/pom.xml has two copies of the core-ui dependency:

Warning:  Some problems were encountered while building the effective model for org.phoebus:core-formula:jar:6.0.0-SNAPSHOT
Warning:  'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: org.phoebus:core-util:jar -> duplicate declaration of version 6.0.0-SNAPSHOT @ line 39, column 19
Warning:  
Warning:  Some problems were encountered while building the effective model for org.phoebus:save-and-restore:jar:6.0.0-SNAPSHOT
Warning:  'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: org.phoebus:core-ui:jar -> duplicate declaration of version 6.0.0-SNAPSHOT @ line 28, column 15