hollow out pytest_namespace in _pytest.fixtures

_pytest/fixtures.py

@@ -51,9 +51,7 @@ def pytest_namespace():
         'module': pytest.Module,
         'function': pytest.Item,
     })
-    return {
-        'collect': {'_fillfuncargs': fillfixtures}
-    }
+    return {}
 
 
 def get_scope_node(node, scope):

pytest.py

@@ -45,6 +45,7 @@ from _pytest.recwarn import warns, deprecated_call
 from _pytest.runner import fail, skip, importorskip, exit
 from _pytest.mark import MARK_GEN as mark
 from _pytest.skipping import xfail
+from _pytest.fixtures import fillfixtures as _fillfuncargs
 set_trace = __pytestPDB.set_trace