Truthfully, I have not needed hcg as part of my TRT. But I suspect I have a tumor on my pituitary keepign my LH/FSH up (or my T dose is not high enough), so my situation is probably unique. But it does show that hcg is not always needed.
If it is making you feel like shit, drop it...but keep in mind that if you start feeling symptoms from it (shrunken balls, lethargy from lack of pregnenolone/cortisol, etc.) then you can always pick it back up again.
It is much easier to adjust one variable at a time than multiple, so the easier you can make that equation the better.