remove dead test code

Author: fjetter

distributed/tests/test_client.py

@@ -4509,50 +4509,6 @@ def test_normalize_collection_with_released_futures(c):
     assert res == sol
 
 
-@pytest.mark.xfail(reason="https://github.com/dask/distributed/issues/4404")
-@gen_cluster(client=True)
-async def test_auto_normalize_collection(c, s, a, b):
-    da = pytest.importorskip("dask.array")
-
-    x = da.ones(10, chunks=5)
-    assert len(x.dask) == 2
-
-    with dask.config.set(optimizations=[c._optimize_insert_futures]):
-        y = x.map_blocks(inc, dtype=x.dtype)
-        yy = c.persist(y)
-
-        await wait(yy)
-
-        start = time()
-        future = c.compute(y.sum())
-        await future
-        end = time()
-        assert end - start < 1
-
-        start = time()
-        z = c.persist(y + 1)
-        await wait(z)
-        end = time()
-        assert end - start < 1
-
-
-@pytest.mark.xfail(reason="https://github.com/dask/distributed/issues/4404")
-def test_auto_normalize_collection_sync(c):
-    da = pytest.importorskip("dask.array")
-    x = da.ones(10, chunks=5)
-
-    y = x.map_blocks(inc, dtype=x.dtype)
-    yy = c.persist(y)
-
-    wait(yy)
-
-    with dask.config.set(optimizations=[c._optimize_insert_futures]):
-        start = time()
-        y.sum().compute()
-        end = time()
-        assert end - start < 1
-
-
 def assert_no_data_loss(scheduler):
     for key, start, finish, recommendations, _, _ in scheduler.transition_log:
         if start == "memory" and finish == "released":