GC should run in master so that it can use informer cache

[ivelichkovich]

What would you like to be added:

GC running using gocron within master pod and leveraging it's informer cache

Why is this needed:

reduce memory overhead from the additional pod and load on api-server in high scale environments

[marquiz]

I think this idea is worth exploring and the concerns are valid. GC does NodeResourceTopology CRs too, so that functionality should be moved to nfd-topology-updater before ditching nfd-gc entirely.