Currently when renaming an object, we execute
```
await this.fieldMetadataRepository
.findOneByOrFail({
name: existingObjectMetadata.nameSingular,
label: existingObjectMetadata.labelSingular,
objectMetadataId: relatedObject.id,
workspaceId: workspaceId,
})
```
to find the standard relation fields.
This would throw an error if the label solely was update beforehand
without updating the name too: in that case we will not have migrated
the label of the standard relation fields (which is maybe a mistake?
@Weiko wdyt?).
Let's remove it.
4c413d4802