Implement or Remove TODO Comment in VPA Estimator

[omerap12]

Which component are you using?:
VPA

Is your feature request designed to solve a problem? If so describe the problem this feature should solve.:
We currently have a TODO comment in the code: comment. This has been there for a while without anyone implementing it. I’m wondering if it's still relevant. Either way, we should either implement the change or remove the comment.

Describe the solution you'd like.:
I propose implementing the separation, which would allow us to further extend the VPA's capabilities. However, I’m also fine with keeping the VPA as it currently is.

Describe any alternative solutions you've considered.:
Simply delete the comment.

Additional context.:
NONE

[omerap12]

/area vertical-pod-autoscaler

[adrianmoisey]

I see value in separating the estimator, I agree in the reason for doing so.

However, if we deleted the comment and did the separation later, I don't think that would hurt the project either.

[omerap12]

/assign