Remove translation from 'heeftBetrekkingOp' to role and visa versa

[MLenterman]

Currently heeftBetrekkingOp is wrongly being translated to a roles, but only when the gerelateerde type is one of: medewerker, natuurlijk persoon, niet-natuurlijk persoon, vestiging of organisatorische eenheid. These should no longer be translated to roles. ZGW roles with omschrijving betrekkingOp should also not be translated back to ZDS anymore.

Should we keep the translation from ZGW roles with omschrijving betrekkingOp back to heeftBetrekkingOp. This should mostly make this change not breaking. Running cases might already have heeftBetrekkingOp as a roles. After updating ZaakBrug, verwerkingsoort="I" would like trigger heeftBetrekkingOp to be added as ZaakObject aswell, because it is missing as ZaakObject. On the way back to ZDS it would result in a double heeftBetrekkingOp entry. Think this can be resolved with some additional logic I think. Need to check if this level of backwards compatibility is needed.