Refs #6927 - remove pulp capsule validation from the puppet functions

The logic was moved to pre_validations kafo hooks
My biggest concern is that we are moving this logic from the modules to the installer which feels like the wrong direction. Our modules should be usable by themselves and if there are validations that need to occur that are specific to a module then I feel we should try to keep them targeted within the module instead of pushing all that logic into our installer. If the validations are only valid when all the modules are combined into our install scenario then I have no issue.