Simplify unions with overlapping types

[italobusi]

union of union types (e.g., te-gen-node-id) includes overlapping types (e.g., inet:ip-address vs. inet:ipv6-address-no-zone): consider simplifying.

[italobusi]

I think this comment applies only to typedef te-gen-node-id .

We can consider removing the typedef te-gen-node-id since it cannot be used alone and moving the union within the grouping te-generic-node-id with the description that the union is disambiguated by the leaf type.

To check that the typedef te-gen-node-id is not used in other models.

[italobusi]

2024-09-06 TE Call

Agreed resolution as above: #288 (comment)

Confirmed that the typedef te-gen-node-id is not used in other models