TST: fix test parameterize / mark

tacaswell · tacaswell · commit 8b4c2a7e2f66 · 2021-08-04T17:06:01.000-04:00
Used to be parameterized, now just marked.  There is no backend fixture.
diff --git a/lib/matplotlib/tests/test_backend_qt.py b/lib/matplotlib/tests/test_backend_qt.py
@@ -34,7 +34,7 @@ def qt_core(request):
 
 
 @pytest.mark.backend('QtAgg', skip_on_importerror=True)
-def test_fig_close(backend):
+def test_fig_close():
     # save the state of Gcf.figs
     init_figs = copy.copy(Gcf.figs)
 
