Nullectomy

I don’t know how much more of this our culture can take. “Gender-affirming” surgeries are growing increasingly extreme. A source sent me links to websites operated by doctors who perform “bottom surgeries” advertising “genital nullification” — a.k.a. “nullectomy” — procedures that remove genitalia in order to create a “smooth” appearance in the groin.

Source: wiktionary

I’d rather be born the way I am now, but flat and nippleless chest, and having a nullectomy. Maybe a slightly different face shape too

Source: wiktionary

If you are interested a person who got their body exactly like you described created a sub for this kind of surgery, it's called "nullectomy"

Source: wiktionary