Child hierarchy notice references 'Entity Test' instead of entity type

I gave this some thought and decided to just remove the reference to 'Test'. 'entity' is globally used and the other options considered were:

* Add the current content entity to the ChildEntityWarningBuilder and then pass it through to the ChildEntityWarning. And then render the current entity type into the message.
* Assume entities in the ChildEntityWarning->relatedEntities were always going to be the same type, so grab one and render the entity type into the message.

In both cases, does that added complexity actually add value to the user. Probably not... they are already on the edit page of what they want to edit.

Thanks!

Automatically closed - issue fixed for 2 weeks with no activity.