`ResourceFuncs` usage was removed from rendering manifests

[inFocus7]

Context

A previous update to support conditional CRD rendering removed our usage of ResourceFuncs. Previously while rendering we went through the ResourceFuncs functions to add to our manifest rendered, but now we don't have any logic doing so.

https://github.com/solo-io/skv2/pull/462/files#diff-813e5efb857f3e8d15508b847892b877943384a6e05532b633e99a5765d66a17L74-L81

Additional Notes

• I'm unsure if this was intentional, but I didn't see any notes regarding it.
  • If it was intentional, should we just remove ResourceFuncs from the ManifestsRenderer object?
  • In addition, do we know/have workarounds to it?
• manifests_renderer.go

[inFocus7]

I have not labeled this, as it acts as both a question ("did we do it intentionally?") and a possible bug if not intentional.