dev-python/txaio: remove spurious dependencies and phase

* app-arch/unzip is uneeded (SRC_URI is a tarball)
* tox, pep8, pytest-cov and pyenchant are uneeded to run tests
* No need to patch in "utils.py" anymore

Package-Manager: Portage-2.3.44, Repoman-2.3.10

dev-python/txaio/txaio-2.9.0.ebuild

@@ -19,7 +19,7 @@ RDEPEND="
 	$(python_gen_cond_dep '>=dev-python/trollius-2.0[${PYTHON_USEDEP}]' python2_7)
 	$(python_gen_cond_dep '>=dev-python/futures-3.0.3[${PYTHON_USEDEP}]' python2_7)
 "
-DEPEND="app-arch/unzip
+DEPEND="
 	dev-python/setuptools[${PYTHON_USEDEP}]
 	dev-python/six[${PYTHON_USEDEP}]
 	doc? (
@@ -28,11 +28,7 @@ DEPEND="app-arch/unzip
 		>=dev-python/sphinx_rtd_theme-0.1.9[${PYTHON_USEDEP}]
 	)
 	test? ( >=dev-python/pytest-2.6.4[${PYTHON_USEDEP}]
-		>=dev-python/pytest-cov-1.8.1[${PYTHON_USEDEP}]
 		>=dev-python/mock-1.3.0[${PYTHON_USEDEP}]
-		>=dev-python/tox-2.1.1[${PYTHON_USEDEP}]
-		>=dev-python/pep8-1.6.2[${PYTHON_USEDEP}]
-		>=dev-python/pyenchant-1.6.6[${PYTHON_USEDEP}]
 	)
 "
 
@@ -43,19 +39,12 @@ src_prepare() {
 	rm "${S}/test/test_packaging.py" || die
 }
 
-python_prepare() {
-	# https://github.com/tavendo/txaio/issues/3
-	cp -r "${FILESDIR}"/util.py test || die
-
-	distutils-r1_python_prepare
-}
-
 python_compile_all() {
 	use doc && emake -C docs html
 }
 
 python_test() {
-	py.test || die "Tests failed under ${EPYTHON}"
+	pytest -v || die "Tests failed under ${EPYTHON}"
 }
 
 python_install_all() {