Sexual pleasure and orgasm is a response to nerve stimulation. Most of the nerve endings in the male genitals are in the glans penis, the tip of the penis. The erectile tissue is just wrapped around the shaft of the penis and itself does not have nerve endings.

So removing it wouldn't necessarily hinder your ability to climax,as long as no nerves were damaged.

However, some surgeons try to mimic the clitoris as a organ more closely and will use the erectile tissue in the labia majora. In many surgeries in the past the erectile tissue was just removed, because surgeons didn't know about the analogue erectile tissue of the clitoris.

I have erectile tissue left behind from Theerapong he and Suporn i think only do this. I feel like the erectile tissue contributes to more intense orgasms and sensations plus my labia gets all puffy when im aroused which is a normal response. However if you are experiencing narrowing of the vaginal canal or pain etc. I would get some of it removed if possible.

I’m trans masc so grain of salt but I highly highly doubt erectile tissue has anything to do with climaxing. AFAB people climax just fine without it