Remove libs used in pre-commit to avoid duplication (#4966)

setup.py

@@ -129,9 +129,7 @@ tests_requirements = [
     "google-compute-engine==2.8.13",
     "Pygments",  # required by collective.checkdocs,
     "collective.checkdocs",
-    "flake8==3.8.3",
     "psutil",
-    "flake8-docstrings",
     "pydocstyle<4.0",
     "jaraco.windows==3.9.2",
     "mock-ssh-server>=0.8.2",
@@ -144,15 +142,11 @@ tests_requirements = [
     "urllib3<1.26.0",
     "rangehttpserver==1.2.0",
     "beautifulsoup4==4.4.0",
-    "flake8-bugbear",
-    "flake8-comprehensions==3.3.0",
-    "flake8-string-format",
     "pylint==2.5.3",
     "pylint-pytest>=0.3.0",
     "pylint-plugin-utils",
     "wget",
     "filelock",
-    "black==19.10b0",
     "mypy",
     "wsgidav",
 ]