dev-python/flake8-polyfill: enable py3.10, ebuild cleanup

Signed-off-by: Arthur Zamarin <arthurzam@gentoo.org>

dev-python/flake8-polyfill/flake8-polyfill-1.0.2.ebuild

@@ -1,35 +1,31 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=7
+EAPI=8
 
-PYTHON_COMPAT=( python3_{7,8,9} )
+PYTHON_COMPAT=( python3_{8..10} )
 inherit distutils-r1
 
 DESCRIPTION="Polyfill package for Flake8 plugins"
 HOMEPAGE="https://gitlab.com/pycqa/flake8-polyfill"
 SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
-EGIT_REPO_URI="https://gitlab.com/pycqa/flake8-polyfill.git"
 
 LICENSE="MIT"
 SLOT="0"
 KEYWORDS="~amd64 ~x86"
-IUSE="test"
-RESTRICT="!test? ( test )"
 
 RDEPEND="dev-python/flake8[${PYTHON_USEDEP}]"
-DEPEND="
-	test? (
-		dev-python/mock[${PYTHON_USEDEP}]
-		dev-python/pycodestyle[${PYTHON_USEDEP}]
-	)"
+BDEPEND="test? ( dev-python/mock[${PYTHON_USEDEP}] )"
 
 distutils_enable_tests pytest
 
-python_prepare_all() {
+EPYTEST_IGNORE=(
 	# Get rid of the test that seems to test only the migration from
 	# pep8 to pycodestyle (bug 598918).
-	rm "tests/test_stdin.py" || die
+	tests/test_stdin.py
+)
+
+src_prepare() {
 	sed -e 's|\[pytest\]|\[tool:pytest\]|' -i setup.cfg || die
-	distutils-r1_python_prepare_all
+	distutils-r1_src_prepare
 }