setup: Stop swh.core.pytest_plugin from autoloading

conftest.py

@@ -3,6 +3,11 @@ import pytest
 
 from swh.core.cli import swh as _swhmain
 
+pytest_plugins = [
+    "swh.core.pytest_plugin",
+]
+
+
 # define tests profile. Full documentation is at:
 # https://hypothesis.readthedocs.io/en/latest/settings.html#settings-profiles
 settings.register_profile("fast", max_examples=5, deadline=5000)

setup.py

@@ -47,7 +47,6 @@ setup(
     author_email="swh-devel@inria.fr",
     url="https://forge.softwareheritage.org/diffusion/DCORE/",
     packages=find_packages(),
-    py_modules=["pytest_swh_core"],
     scripts=[],
     install_requires=parse_requirements(None, "swh"),
     setup_requires=["setuptools-scm"],
@@ -68,8 +67,6 @@ setup(
         swh-db-init=swh.core.cli.db:db_init
         [swh.cli.subcommands]
         db=swh.core.cli.db
-        [pytest11]
-        pytest_swh_core = swh.core.pytest_plugin
     """,
     classifiers=[
         "Programming Language :: Python :: 3",