<<rule>> Delete: Multiplicity-One Containment-Container Reference
<<preserve>>
fromContainedClass : EClass
<<delete>>
oldContainerReference : EReference
<<delete>> upperBound = "1"
<<delete>> containment = "false"
<<preserve>>
fromContainerClass : EClass
<<delete>>
oldContainmentReference : EReference
<<delete>> upperBound = "1"
<<delete>> containment = "true"
<<delete>>
eType
<<delete>>
eOpposite
<<delete>>
eType
<<delete>>
eOpposite
<<delete>>
eContainingClass
eStructuralFeatures
<<delete>>
eContainingClass
eStructuralFeatures