Merge pull request #491 from pre-commit/all-repos_autofix_faster-tests

slightly speed up tests by avoiding pre-commit install

requirements-dev.txt

diff --git a/requirements-dev.txt b/requirements-dev.txt
index 67f6485..0c5a37e 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,3 @@
 covdefaults
 coverage
-pre-commit
 pytest

tox.ini

diff --git a/tox.ini b/tox.ini
index cb58fee..965eba9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,7 +12,6 @@
     coverage erase
     coverage run -m pytest {posargs:tests}
     coverage report --fail-under 100
-    pre-commit install
 
 [testenv:pre-commit]
 skip_install = true