Commit https://gerrit.nordix.org/c/onap/sdc/+/4846 introduced the definition of the tosca.interfaces.Root interface type which is derived from tosca.entity.Root.

However, no definition of type tosca.entity.Root is present meaning the derived from reference in tosca.interfaces.Root to tosca.entity.Root cannot be resolved. I cannot find any definition of tosca.entity.Root in the tosca spec so I am proposing to remove the "derived from" from this interface definition. This is consistent with tosca.nodes.root which does not contain the derived from even though in the tosca spec it is derived from tosca.entity.Root