Fix stupid N^2 naming behavior in FX and removed assert that slows things a lot sometimes (#87533)
cc @jansel @lezcano @fdrocha @mlazos @soumith @voznesenskym @yanboliang
Pull Request resolved: https://github.com/pytorch/pytorch/pull/87533
Approved by: https://github.com/ezyang, https://github.com/voznesenskym
