Testing: Run test_tk_backend because it should work now

Author: ccordoba12

spyder/plugins/ipythonconsole/tests/test_ipythonconsole.py

@@ -330,7 +330,6 @@ def test_auto_backend(ipyconsole, qtbot):
 
 @flaky(max_runs=3)
 @pytest.mark.tk_backend
-@pytest.mark.skipif(os.name == 'nt', reason="Fails on Windows")
 def test_tk_backend(ipyconsole, qtbot):
     """Test that the Tkinter backend was set correctly."""
     # Wait until the window is fully up