Revert "Allow installing on older minior versions of Py3.5."

This reverts commit 00e0938.

Author: s0undt3ch

.pre-commit-config.yaml

@@ -114,8 +114,6 @@ repos:
     hooks:
       - id: flake8
         exclude: ^(src/pytestskipmarkers/(downgraded/.*|version\.py)|\.pre-commit-hooks/.*\.py)$
-        args:
-          - --min-python-version=3.5.6
         additional_dependencies:
         - flake8-mypy-fork
         - flake8-docstrings

setup.cfg

@@ -33,7 +33,7 @@ include_package_data = True
 package_dir =
     =src
 packages = find:
-python_requires = >= 3.5
+python_requires = >= 3.5.6
 setup_requires =
   setuptools>=50.3.2
   setuptools_scm[toml]>=3.4
@@ -70,7 +70,6 @@ owner = root
 group = root
 
 [flake8]
-min_python_version = 3.5.6
 max-line-length = 120
 exclude =
   # No need to traverse our git directory
@@ -116,9 +115,7 @@ ignore =
   # D200 One-line docstring should fit on one line with quotes
   D200,
   # W503 line break before binary operator
-  W503,
-  # TYP001 guard import by TYPE_CHECKING
-  TYP001
+  W503
 
 # Additional builtins
 builtins =