quicksort_by: vec of T does not need to impl PartialOrd
quicksort_by: vec of T does not need to impl PartialOrd

It's up to the cmp function passed in to make sure that the items can be
ordered, whether or not they impl PartialOrd or Ord.

Signed-off-by: Johannes Löthberg <8398eb9892c5ab2ff439ca0b5e4b0706dd9ebef9@kyriasis.com>

kyrias/ironsort