pre_commit is not needed to run tests.

--- mypy-1.15.0/test-requirements.in.orig
+++ mypy-1.15.0/test-requirements.in
@@ -13,4 +13,3 @@
 pytest-cov>=2.10.0
 setuptools>=75.1.0
 tomli>=1.1.0  # needed even on py311+ so the self check passes with --python-version 3.9
-pre_commit>=3.5.0