DEV: Remove seed-isort-config hook (#28272)

This was causing issues for me locally. Anyone else?

It took a while to run, and didn't seem to give the same
output as others (depends on something peculiar to my environment)
which doesn't seem to be great for a pre-commit hook.

Closes #28236

Author: TomAugspurger

.pre-commit-config.yaml

@@ -15,7 +15,3 @@ repos:
     hooks:
     -   id: isort
         language: python_venv
--   repo: https://github.com/asottile/seed-isort-config
-    rev: v1.9.2
-    hooks:
-    -   id: seed-isort-config