Revert "Endpoints should always have nested hashes for guid's and the like. [fixes #44321011]"

This reverts commit 1ac189d82e681379565bf98def2f3de066f40641.
Revert "Added the ability to show nested attributes in models"

This reverts commit 583b004615b5cfd5d4013cea640c226b758214ab.

Conflicts:

	spec/models/app_spec.rb